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Additional Functions Practice Problems

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Wize University Calculus 1 Textbook > Pre-Calculus (Review)

Inverse Trigonometric Functions

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Wize University Calculus 1 Textbook > Pre-Calculus (Review)

Logarithmic Functions

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Additional Practice Problems--Functions

1. Solve the following equations for x:

a. 9x−2=(127)2x+19^{x-2}=\left(\frac{1}{27}\right)^{2x+1}


b. ex2=ln⁡(3)e^{x^2}=\ln\left(3\right)


c. log⁡3(x+1)+log⁡3(2x−1)=2\log_3\left(x+1\right)+\log_3\left(2x-1\right)=2


d. 2sin⁡2x=23cos⁡x,   x∈[0,2π]2\sin2x=2\sqrt{3}\cos x,\ \ \ x\in\left[0,2\pi\right]


2. Simplify the following expressions:

a. ln⁡(3e2)+e2ln⁡3\ln\left(3e^2\right)+e^{2\ln3}


b. Simplify 2log⁡510+log⁡52−log⁡582\log_5 10+\log_5 2-\log_5 8


c. Simplify log⁡59log⁡527\frac{\log_5 9}{\log_5 27}


d. sin⁡2x+cos⁡2x−12cos⁡2x\frac{\sin2x+\cos2x-1}{2\cos^2x}


3. For each of the following functions, find its inverse and state the domain and range:

a. f(x)=−2(x−1)2+3,   (x≥1)f\left(x\right)=-2\left(x-1\right)^2+3,\ \ \ \left(x\ge1\right)


b. g(x)=ln⁡(4−x)g\left(x\right)=\sqrt{\ln\left(4-x\right)}


c. h(x)=4−cos⁡(x+1),   on the appropriate domainh\left(x\right)=4-\cos\left(x+1\right),\ \ \ on\ the\ appropriate\ domain


d. j(x)=9−xxj\left(x\right)=\frac{9-x}{x}


4. Which of the following results in a value that is positive:

a. ln⁡(150)+ln⁡(51)\ln\left(\frac{1}{50}\right)+\ln\left(51\right)


b. ln⁡(1π)+ln⁡(e)\ln\left(\frac{1}{\pi}\right)+\ln\left(e\right)


c. log⁡218\log_2\sqrt{\frac{1}{8}}


d. sin⁡(5π4)\sin\left(\frac{5\pi}{4}\right)


e. tan⁡(4π3)−cos⁡(11π6)\tan\left(\frac{4\pi}{3}\right)-\cos\left(\frac{11\pi}{6}\right)


f. sin⁡(arcsin⁡(0.67))\sin\left(\arcsin\left(0.67\right)\right)


g. tan⁡(arctan⁡(−13))\tan\left(\arctan\left(-\frac{1}{\sqrt{3}}\right)\right)


h. arccos⁡(cos⁡(−π3))\arccos\left(\cos\left(-\frac{\pi}{3}\right)\right)


More Inverse Trigonometric Functions Questions:
Inverse Trigonometric Functions
Compute the exact value of
arccos⁡(cos⁡(3π4))\arccos \left ( \cos \left ( \frac{3 \pi}{4} \right ) \right )
Find the exact value of arcsin⁡(sin⁡(−17π6))\arcsin(\sin(-\frac{17\pi}{6}))
Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Trig & Inverse Trig Values
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Practice: Trig & Inverse Trig Values (level 2)
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Inverse Trigonometric Functions
Which of the following results in a value that is positive:
Domain & Range with Inverse Trig
Find the domain and range of f(x)=1arcsin⁡xf\left(x\right)=\frac{1}{\arcsin x}.
Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Trig & Inverse Trig Values
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Inverse Trigonometric Functions
Evaluate tan⁡(tan⁡−1π4)+arcsin⁡(sin⁡5π4)\tan\left(\tan^{-1}\frac{\pi}{4}\right)+\arcsin\left(\sin\frac{5\pi}{4}\right).
Inverse Trigonometric Functions
Find the exact value of cos⁡[tan⁡−12+tan⁡−13]\cos[\tan^{-1}2+\tan^{-1}3].
Inverse Trig with Product
Find the exact value of sin⁡[2cos⁡−1(15)]\sin\bigg[2\cos^{-1}\bigg(\dfrac{1}{5}\bigg)\bigg].
Inverse Trigonometric Functions: Restrict the Domain
Find the exact value of arccos⁡(cos⁡23π3)\arccos\bigg(\cos\dfrac{23\pi}{3}\bigg) .
Inverse Trigonometric Functions
Simplify cos⁡(arctan⁡(4))\cos(\arctan(4)).
Exponential, Logarithmic and Trigonometric Functions
Which of the following numbers is the largest?
Inverse Trigonometric Functions
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Practice: Trig & Inverse Trig Values (level 3)
Practice: Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Practice: Trig & Inverse Trig Values (level 2)
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Practice: Trig & Inverse Trig Values (level 3)
Practice: Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Practice: Trig & Inverse Trig Values (level 3)
Practice: Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Inverse Trigonometric Functions
Without the using a calculator, compute the exact value of
arctan⁡(tan⁡(13π11))\arctan \left ( \tan \left ( \frac{13\pi}{11} \right ) \right )
*The π\pi symbol is obtained by typing in \pi
Inverse Trigonometric Functions
Answer the following Trig and Inverse Trig questions.
Inverse Trigonometric Functions
Without the use a calculator, compute the exact value of
arccos⁡(cos⁡(3π4))\arccos \left ( \cos \left ( \frac{3 \pi}{4} \right ) \right )
Inverse Trigonometric Functions
Find the exact value of sin⁡(2cos⁡−1(x))\sin\left(2\cos^{-1}\left(x\right)\right).
Inverse Trigonometric Functions
Find the value of sin (arccos (− √3/2 )).
Inverse Trigonometric Functions
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Inverse Trigonometric Functions
Simplify the following expression:
sec⁡2(arctan⁡(1/x2))\sec^2(\arctan(1/x^2))
Inverse Trigonometric Functions
Simplify
sin⁡(2arcsin⁡x)\sin(2\arcsin x)
Inverse Trigonometric Functions
Find the exact value of tan⁡[arcsin⁡(−3/5)]\tan[\arcsin(-3/5)]
Inverse Trigonometric Functions
Find the exact value of sin⁡(2cos⁡−1x)\sin(2\cos^{-1}x)
Inverse Trigonometric Functions
Find the domain and range of f(x)=1arcsin⁡xf(x) = \frac{1}{\arcsin x}
Additional Functions Practice Problems
Additional Practice Problems--Functions
1. Solve the following equations for x:
a. 9x−2=(127)2x+19^{x-2}=\left(\frac{1}{27}\right)^{2x+1}
Simplify the following expression: sin⁡[−tan⁡−1(x2−1)]\sin[-\tan^{-1}(\sqrt{x^2-1})]
Practice: Trigonometric Modeling
Q:\bf{Q:} The temperature of the body oscillates throughout the day and can be modeled by the function: T(t)=37 + 0.4cos⁡(π12 t−π3)T\left(t\right)=37\ +\ 0.4\cos\left(\dfrac{\pi}{12} \ t-\dfrac{\pi}{3}\right) where TT is the temperature in degrees Celsius, and tt is the time in hours after 12pm.
a) What is the maximum and minimum temperatures of the body throughout the day?
b) What is the period of this function? Does this make sense given the context of the problem?
Inverse Trigonometric Functions: Restrict the Domain
Find the exact value of arccos⁡(cos⁡23π3)\arccos\bigg(\cos\dfrac{23\pi}{3}\bigg) .
Inverse Trigonometric Functions
Find the exact value of cos⁡[tan⁡−12+tan⁡−13]\cos[\tan^{-1}2+\tan^{-1}3].
Inverse Trig with Product
Find the exact value of sin⁡[2cos⁡−1(15)]\sin\bigg[2\cos^{-1}\bigg(\dfrac{1}{5}\bigg)\bigg].
Inverse Trigonometric Functions
Simplify the expression cos⁡(tan⁡−1(x2))\cos\left(\tan^{-1}\left(\frac{x}{2}\right)\right)
Inverse Trigonometric Functions
Simplify the following expression;
sec⁡−1(2)=\sec^{-1}(2)=
Inverse Trigonometric Functions
Calculate the value of the expression sin⁡−1(sin⁡(5π3))\sin^{-1}\left(\sin\left(\frac{5\pi}{3}\right)\right)
Find the exact value of arcsin⁡(sin⁡(−17π6))\arcsin(\sin(-\frac{17\pi}{6}))
Inverse Trigonometric Functions
Find sin⁡(arctan⁡(x))\sin\left(\arctan\left(x\right)\right).
Practice: Trig & Inverse Trig Values (level 2)
Practice: Trig & Inverse Trig Values
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Practice: Trig & Inverse Trig Values (level 3)
Practice: Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Practice: Domain & Range with Inverse Trig
Practice: Domain & Range with Inverse Trig
Find the domain and range of f(x)=1arcsin⁡xf\left(x\right)=\frac{1}{\arcsin x}.
Find the value of sin⁡[arccos⁡(−32)]\sin\left[\arccos\left(-\frac{\sqrt{3}}{2}\right)\right] .
Inverse Trigonometric Functions
Find sin (arctan 𝑥).
Trig & Inverse Trig Values
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
Trig & Inverse Trig Values
Find the exact value of sin⁡(2cos⁡−1x)\sin\left(2\cos^{-1}x\right).
Domain & Range with Inverse Trig
Find the domain and range of f(x)=1arcsin⁡xf\left(x\right)=\frac{1}{\arcsin x}.
Inverse trigonometric functions
Evaluate the expression arcsin⁡(−12)×cos⁡(7π6)+2ln⁡(3e)\arcsin\left(-\frac{1}{\sqrt{2}}\right)\times\cos\left(\frac{7\pi}{6}\right)+2\ln\left(3\sqrt{e}\right)
Inverse Trigonometric Functions
Which of the following results in a value that is positive:
Inverse Trigonometric Functions
Evaluate tan⁡(tan⁡−1π4)+arcsin⁡(sin⁡5π4)\tan\left(\tan^{-1}\frac{\pi}{4}\right)+\arcsin\left(\sin\frac{5\pi}{4}\right).
Practice: Trig & Inverse Trig Values (level 2)
Find the exact value of tan⁡[arcsin⁡(−35)]\tan\left[\arcsin\left(-\frac{3}{5}\right)\right].
More Logarithmic Functions Questions:
Find the inverse of the function y=log⁡5(2x−1)−9y=\log_5\left(2x-1\right)-9.
Find the inverse of the function y=log⁡5(2x−1)−9y=\log_5\left(2x-1\right)-9.
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Logarithmic Functions
Find the domain of the following function:
f(x)=x2−2x+1ln⁡(x2−5x+6)f(x)=\dfrac{x^2-2x+1}{\sqrt{\ln(x^2-5x+6)}}
Transforming a Log
Given f(x)=log⁡3(2x+4)f\left(x\right)=\log_3\left(2x+4\right) , state all the transformations and draw a rough sketch of the function. State the asymptotes, intercepts, domain and range.
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Practice: Solving a logarithmic function
Solve for 𝑥 in the equation 2ln⁡(x−1)−ln⁡(4)=02\ln\left(x-1\right)-\ln\left(4\right)=0
Inverse of Logarithmic Functions
Find the inverse of y=5ln⁡(3ln⁡x−2)y=5\ln\left(3\ln x-2\right)
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Finding the Inverse of a Function
Practice: Finding the Inverse of a Function
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Logarithmic Functions
Solve for xx in the equation: eln⁡(1+e−x)=e3e^{\ln\left(1+e^{-x}\right)}=e^3
Logarithmic Functions
Solve for xx in the equation: eln⁡(1+e−x)=e3e^{\ln\left(1+e^{-x}\right)}=e^3
Solving exponential functions
Solve for x if 32x/3=8x−1232^{x/3} = 8^{x-12}
Inverse and Logarithmic Functions
Find the inverse function of 𝑓(𝑥) = ln (𝑥2 − 5) on its appropriate domain.
Logarithmic Functions
Find the inverse function of f(x)=2ln⁡(x+e) f\left(x\right)=2\ln\left(x+e\right)\ .
Logarithmic Functions
Find the inverse function of f(x)=2ln⁡(x+e) f\left(x\right)=2\ln\left(x+e\right)\ .
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Evaluate 2log⁡510+log⁡52−log⁡582\log_5 10+\log_5 2-\log_5 8
Evaluate 2log⁡510+log⁡52−log⁡582\log_5 10+\log_5 2-\log_5 8
Evaluate 2log⁡510+log⁡52−log⁡582\log_5 10+\log_5 2-\log_5 8
Domain of Log Functions
Determine the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Logarithmic Functions
Solve for xx in the equation: eln⁡(1+e−x)=e3e^{\ln\left(1+e^{-x}\right)}=e^3
Solving exponential functions
Solve for x if 32x/3=8x−1232^{x/3} = 8^{x-12}
Finding the Inverse of a Function
Practice: Finding the Inverse of a Function
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Inverse Trigonometric Functions
Which of the following results in a value that is positive:
Additional Practice Problems--Functions Part 2
Additional Practice Problems
Simplify the following expressions:
a. ln⁡(3e2)+e2ln⁡3\ln\left(3e^2\right)+e^{2\ln3}
Finding the Inverse of a Function
Practice: Finding the Inverse of a Function
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Log & Exponential Function Properties
Which of the following functions is/are always increasing?
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx
Logarithmic Functions: Log Values
Practice: Log Values
If x=log⁡218x=\log_2\sqrt{\frac{1}{8}} , y=ln⁡(10e2)+ln⁡(0.1)y=\ln\left(\frac{10}{e^2}\right)+\ln\left(0.1\right), and z=e−2ln⁡3z=e^{-2\ln3}, which of the following statements is true?
Q:\bf{Q:} Find the inverse function of 𝑓(𝑥)=2ln⁡(𝑥+e) 𝑓(𝑥) = 2 \ln (𝑥 + e)
Q:\bf{Q:} Find the inverse of f(x)=ln⁡(x−4)f\left(x\right)=\ln\left(x-4\right) and state the domain and range for both ff and f−1f^{-1} .
Practice: Combining Logs
Q:\bf{Q:} Evaluate log⁡2 116−log⁡215+log⁡230\log_2\ \dfrac{1}{16}-\log_215+\log_230
Logarithmic Functions
Find the domain of the following function: f(x)=1−xlog⁡(1+x)f(x)=\dfrac{\sqrt{1-x}}{\log\left(1+x\right)}
Logarithmic Functions: Determine the domain
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Logarithmic Functions
Find the domain of the function f(x)=ln⁡[ln⁡(x2)]f\left(x\right)=\ln\left[\ln\left(x^2\right)\right].
Logarithmic Functions
Solve for xx in the equation 2ln⁡(x−1)−ln⁡(4)=02\ln\left(x-1\right)-\ln\left(4\right)=0
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Inverse of Logarithmic Functions
Find the inverse of y=5ln⁡(3ln⁡x−2)y=5\ln\left(3\ln x-2\right)
Range of Inverse
Find the range of the inverse of y=x+2+ln⁡(5−x)y=\sqrt{x+2}+\ln(5-x) .
Even or Odd Logarithmic Functions
Determine if the following function is even, odd, or neither: f(x)=log⁡31−x1+xf\left(x\right)=\log^3\dfrac{1-x}{1+x}
Q:\bf{Q:} State the possible values of ff and gg given f(g(x))=x−ln⁡xf\left(g\left(x\right)\right)=\sqrt{x-\ln x}
Logarithmic Functions
Find the domain of f(x)=[ln⁡(x−5)−2]34f\left(x\right)=\left[\ln\left(x-5\right)-2\right]^{^{\frac{3}{4}}}
Inequalities with Logs
Find all xx that satisfy the inequality ln⁡(2x−1)>e3\ln\left(2x-1\right)>e^3
Logarithmic and Trigonometric Functions
Solve for x in the equation ln⁡(4−4sin⁡2x)=0\ln\left(4-4\sin^2x\right)=0
Transforming a Log
Given f(x)=log⁡3(2x+4)f\left(x\right)=\log_3\left(2x+4\right) , state all the transformations and draw a rough sketch of the function. State the asymptotes, intercepts, domain and range.
Logarithmic Functions
Solve for xx in the equation: eln⁡(1+e−x)=e3e^{\ln\left(1+e^{-x}\right)}=e^3
Rules of Logs
Expand the expression log⁡[x3sin⁡(x4)cos⁡2(5x)(102x)]\log\left[\dfrac{x^3\sin\left(x^4\right)}{\cos^2\left(5x\right)\left(10^{2x}\right)}\right]
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Basics of Logarithms
Practice: Basics of Logarithms
Evaluate each logarithm and match it to its corresponding answer.
Logarithmic Functions
If log⁡3=a\log{3}=a and log⁡5=b\log{5}=b, then determine the following in terms of a and b:
Solving Logarithmic Equations
Solve log⁡2(2x+1)−log⁡2(x−1)=3\log_2{(2x+1)}-\log_2{(x-1)}=3.
Solving Logarithmic Equations
Practice: Solving Logarithmic Equations
If log⁡7343=b−a\log_{7}{343}=b-a and log⁡636=2a+2b\log_{6}{36}=2a+2b, what is aa and bb?
Solving Logarithmic Equations
Practice: Solving Logarithmic Equations
If log⁡5625=a+b\log_{5}{625}=a+b and log⁡327=2a−b\log_{3}{27}=2a-b, what is aa and bb?
Solving Logarithmic Equations
Practice: Solving Logarithmic Equations
Solve.
log⁡56+log⁡52x2=log⁡548 \log_5{6} + \log_5{2x^2}=\log_5{48}
Solving Logarithmic Equations
Practice: Solving Logarithmic Equations
Solve.
log⁡(x−3)−log⁡(x−5)=log⁡5\log(x-3)-\log(x-5)=\log5
Solving Logarithmic Equations
Practice: Solving Logarithmic Equations
Solve and check.
log⁡82+log⁡84x2=1\log_82+\log_84x^2=1
Solving Logarithmic Equations
Practice: Solving Logarithmic Equations
Solve and check.
log⁡9(x+6)−log⁡9x=log⁡92\log_9(x+6)-\log_9x=\log_92
Logarithm Laws
Practice: Logarithm Laws
If log⁡50=9.5\log50=9.5, find an approximation for the following:
Logarithm Laws
Practice: Logarithm Laws
If log⁡20=3.4872\log20=3.4872, find an approximation for the following:
Logarithm Laws
Practice: Logarithm Laws
If log⁡5=a\log5=a and log⁡7=b\log7=b, write each logarithm in terms of aa and bb.
Logarithm Laws
Practice: Logarithm Laws
If log⁡3=a\log3=a and log⁡5=b\log5=b, write each logarithm in terms of aa and bb.
Logarithm Laws
Practice: Logarithm Laws
Evaluate log⁡3(812734353965)\log_{3}{\Bigg(\dfrac{81\sqrt[4]{27^3}3^{\frac{5}{3}}}{9^{\frac{6}{5}}}\Bigg)}. Leave answer in exact form.
Logarithm Laws
Practice: Logarithm Laws
Which of the following is equivalent to log⁡a(a4b3c5d32e2)\log_{a}{\Bigg(\dfrac{a^4\sqrt[3]{b}c^5}{d^{\frac{3}{2}}e^2}\Bigg)}?
Basics of Logarithms
Practice: Basics of Logarithms
Evaluate log⁡1162=128\log_{\frac{1}{16}}{^2=\sqrt{128}}.
Basics of Logarithms
Practice: Basics of Logarithms
Evaluate log⁡19327\log_{\frac{1}{9}}{^3\sqrt{27}}.
Basics of Logarithms
Practice: Basics of Logarithms
Evaluate each logarithm and match it to its corresponding answer.
Basics of Logarithms
Practice: Basics of Logarithms
Match each exponential expression to its inverse.
Basics of Logarithms
Practice: Basics of Logarithms
Match each exponential expression to its inverse.
Question 1
Suppose that you have conducted an experiment resulting in the data plotted below.
The following functions f(x)f(x) depend on a parameter b>0b > 0. Which function would you use to fit the data points?
Exponential, Logarithmic and Trigonometric Functions
Which of the following numbers is the largest?
Transforming a Log
Given f(x)=log⁡3(2x+4)f\left(x\right)=\log_3\left(2x+4\right) , state all the transformations and draw a rough sketch of the function. State the asymptotes, intercepts, domain and range.
Log & Exponential Function Properties
Which of the following functions is/are always increasing?
Find the domain of the function f(x)=8−4ln⁡(x)f\left(x\right)=\sqrt{8-4\ln\left(x\right)}
When we plot the function y=10000x3y=10000x^3 on a log-log graph, we get
Find the domain of the function f(x)=ln⁡([[x]]−4)f\left(x\right)=\ln\left(\left[\left[x\right]\right]-4\right) where [[x]]\left[\left[x\right]\right] represents the greatest integer of x.
Logarithmic Functions
Find the inverse of the function f(x)=2−e3x+1f(x) = 2-e^{3x+1} and find its domain.
Logarithmic Functions
Find the inverse of f(x)=2ln⁡(x+e)f(x) = 2\ln(x+e)
Logarithmic Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f(x) = \ln(\ln(x^2))
Solving exponential functions
Solve for x if 32x/3=8x−1232^{x/3} = 8^{x-12}
Additional Functions Practice Problems
Additional Practice Problems--Functions
1. Solve the following equations for x:
a. 9x−2=(127)2x+19^{x-2}=\left(\frac{1}{27}\right)^{2x+1}
Practice: Solving a logarithmic function
Practice Question: Solving a Logarithmic Function
Solve for 𝑥 in the equation 2ln⁡(x−1)−ln⁡(4)=02\ln\left(x-1\right)-\ln\left(4\right)=0
Enter your answers as numbers only. If there is more than 1 answer for x, type them from smallest to biggest, separated by a comma with no spaces in between (for example, -5,1,2)
Logarithmic Functions
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Logarithmic Functions
Simplify the following expression using the laws of logarithm.
12[log⁡3(x−1)+log⁡3(x−3)]\frac{1}{2}\left[\log_3\left(x-1\right)+\log_3\left(x-3\right)\right]
Find the inverse of the function y=log⁡5(2x−1)−9y=\log_5\left(2x-1\right)-9.
Logarithmic Functions
Solve for xx in the equation: eln⁡(1+e−x)=e3e^{\ln\left(1+e^{-x}\right)}=e^3
Rules of Logs
Expand the expression log⁡[x3sin⁡(x4)cos⁡2(5x)(102x)]\log\left[\dfrac{x^3\sin\left(x^4\right)}{\cos^2\left(5x\right)\left(10^{2x}\right)}\right]
Logarithmic and Trigonometric Functions
Solve for x in the equation ln⁡(4−4sin⁡2x)=0\ln\left(4-4\sin^2x\right)=0
Inequalities with Logs
Find all xx that satisfy the inequality ln⁡(2x−1)>e3\ln\left(2x-1\right)>e^3
Inverse of Logarithmic Functions
Find the inverse of y=5ln⁡(3ln⁡x−2)y=5\ln\left(3\ln x-2\right)
Inverse of Exponent
Find the inverse of the given function, and its domain and range: f(x)=5e2x3−1−4f\left(x\right)=5e^{2x^3-1}-4
Even or Odd Logarithmic Functions
Determine if the following function is even, odd, or neither: f(x)=log⁡31−x1+xf\left(x\right)=\log^3\dfrac{1-x}{1+x}
Logarithmic Functions
Find the domain of f(x)=[ln⁡(x−5)−2]34f\left(x\right)=\left[\ln\left(x-5\right)-2\right]^{^{\frac{3}{4}}}
Logarithmic Functions: Determine the domain
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Logarithmic Functions
Find the domain of the function f(x)=ln⁡[ln⁡(x2)]f\left(x\right)=\ln\left[\ln\left(x^2\right)\right].
Logarithmic Functions
Solve for xx in the equation 2ln⁡(x−1)−ln⁡(4)=02\ln\left(x-1\right)-\ln\left(4\right)=0
Logarithmic Functions
Find the domain of the following function: f(x)=1−xlog⁡(1+x)f(x)=\dfrac{\sqrt{1-x}}{\log\left(1+x\right)}
Q:\bf{Q:} Find the inverse function of 𝑓(𝑥)=2ln⁡(𝑥+e) 𝑓(𝑥) = 2 \ln (𝑥 + e)
Range of Inverse
Find the range of the inverse of y=x+2+ln⁡(5−x)y=\sqrt{x+2}+\ln(5-x) .
Q:\bf{Q:} State the possible values of ff and gg given f(g(x))=x−ln⁡xf\left(g\left(x\right)\right)=\sqrt{x-\ln x}
Q:\bf{Q:} Find the inverse of f(x)=ln⁡(x−4)f\left(x\right)=\ln\left(x-4\right) and state the domain and range for both ff and f−1f^{-1} .
Practice: Combining Logs
Q:\bf{Q:} Evaluate log⁡2 116−log⁡215+log⁡230\log_2\ \dfrac{1}{16}-\log_215+\log_230
What value of xx solves the equation
log⁡2(x)+log⁡2(x−2)=3\log_2\left(x\right)+\log_2\left(x-2\right)=3 ?
Logarithmic Functions
Consider the functions u(t)=(t+2)2u(t)=(t+2)^2 and v(t)=ln⁡(t)v(t)=\ln(\sqrt t). Find (v∘u)(t)(v \circ u)(t) and the domain.
Logarithmic Functions
Simplify the following expression using the laws of logarithm.
3−log⁡3(1x2)\displaystyle3^{-\log_3\left(\frac{1}{x^2}\right)}
Logarithmic Functions
Simplify the following expression using the laws of logarithm.
eln⁡(ln⁡ e7)+ln⁡(eeln⁡6)e^{\ln\left(\ln\ e^7\right)}+\ln\left(e^{e^{\ln6}}\right)
Logarithmic Functions
Simplify log⁡78log⁡732\frac{\log_78}{\log_732}
Logarithmic Functions
Evaluate e[2ln⁡4−ln⁡2]+ln⁡(e3e2)e^{[2\ln4-\ln2]}+\ln(e^3e^2).
Logarithmic Functions
Find the inverse of f(x)=ln⁡(x−1x+1)f\left(x\right)=\ln\left(\frac{x-1}{x+1}\right)
Logarithmic Functions
Find the domain of the following function:
f(x)=x2−2x+1ln⁡(x2−5x+6)f(x)=\dfrac{x^2-2x+1}{\sqrt{\ln(x^2-5x+6)}}
Practice: Inverse function
Find the inverse of f(x)=ln⁡18−2−3cos⁡xf\left(x\right)=\ln\frac{1}{\sqrt{8-2^{-3\cos x}}}, 0≤x<π0 \leq x < \pi.
Logarithmic Functions
Solve for xx in the equation ln⁡(ln⁡(x+1))=0\ln\left(\ln\left(x+1\right)\right)=0
Logarithmic Functions
Solve for xx in the equation ln⁡(3x−1)=−e\ln\left(3x-1\right)=-e.
Logarithmic Functions
Find the inverse function of f(x)=2ln⁡(x+e) f\left(x\right)=2\ln\left(x+e\right)\ .
Find the inverse function of 𝑓(𝑥) = ln (𝑥2 − 5) on its appropriate domain.
Find the inverse function of 𝑓(𝑥) = ln (𝑥2 − 5) on its appropriate domain.
Solve for xx in the equation ln⁡(ln⁡(x+1))=0\ln\left(\ln\left(x+1\right)\right)=0
Practice: Log & Exponential Function Properties
Practice: Log & Exponential Function Properties
Which of the following functions is/are always increasing?
Practice: Finding the Inverse of a Function
Practice: Finding the Inverse of a Function
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
a. f−1(x)=ln⁡(3x−1)−2f^{-1}\left(x\right)=\ln\left(3x-1\right)-2; domain of f−1f^{-1} is (13,∞)\left(\frac{1}{3},\infty\right)
Practice: Finding an inverse function
Practice Question: Finding an Inverse Function
Find the inverse function of 𝑓(𝑥) = 2ln (𝑥 + 𝑒).
Practice: Domain of Log Functions
Practice: Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Practice: Solving a logarithmic function
Practice Question: Solving a Logarithmic Function
Solve for 𝑥 in the equation 2ln⁡(x−1)−ln⁡(4)=02\ln\left(x-1\right)-\ln\left(4\right)=0
Inverse and Logarithmic Functions
Find the inverse function of 𝑓(𝑥) = ln (𝑥2 − 5) on its appropriate domain.
Logarithmic Functions
Find the domain of the function f(x)=ln⁡(x2−5)f\left(x\right)=\ln\left(x^2-5\right).
Finding the Inverse of a Function
Practice: Finding the Inverse of a Function
Find the inverse f−1f^{-1} of the function f(x)=2−e3x+1f\left(x\right)=2-e^{3x+1}, and determine its domain.
Domain of Log Functions
Find the domain of the function f(x)=ln⁡(ln⁡(x2))f\left(x\right)=\ln\left(\ln\left(x^2\right)\right).
Logarithmic Functions: Domain and Range
Find the formula of the function obtained by shifting the graph of y=ln⁡xy=\ln x 2 units down, then reflecting the graph about the x-axis, and finally, shifting the graph 1 unit up. State the domain and range of the function.
Inverse Trigonometric Functions
Which of the following results in a value that is positive:
Additional Practice Problems--Functions Part 2
b. Simplify 2log⁡510+log⁡52−log⁡582\log_5 10+\log_5 2-\log_5 8
Logarithmic Functions: Log Values
Practice: Log Values
If x=log⁡218x=\log_2\sqrt{\frac{1}{8}} , y=ln⁡(10e2)+ln⁡(0.1)y=\ln\left(\frac{10}{e^2}\right)+\ln\left(0.1\right), and z=e−2ln⁡3z=e^{-2\ln3}, which of the following statements is true?
Solving Log Equations
If e⋅ln⁡(1+ex)=1e\cdot\ln\left(1+e^x\right)=1, solve for xx