Double & Half Angle Identities

7 Activities

Wize High School Algebra II Textbook (Common Core) > Trigonometric Identities & Proofs

Double & Half Angle Identities

7 Activities

Practice: Double & Half Angle Identities

Let sin⁡θ=25\sin\theta=\dfrac{2}{5}sinθ=52​ and 0≤θ≤π20\leq{}\theta\leq{}\dfrac{\pi}{2}0≤θ≤2π​. 

a. What is

\sin2\theta

b. What is

\cos2\theta

c. What is

\tan2\theta

I don't know

More Double & Half Angle Identities Questions:

Double & Half Angle Identities

Practice: Double & Half Angle Identities
True or False? csc⁡2θ−2csc⁡2θ=sin⁡2θ\dfrac{\csc^2\theta-2}{\csc^2\theta}=\sin2\thetacsc2θcsc2θ−2​=sin2θ

Double & Half Angle Identities

Practice: Double & Half Angle Identities
True or False? sin⁡2θ1−cos⁡2θ=2csc⁡2θ−tan⁡θ\dfrac{\sin2\theta}{1-\cos2\theta}=2\csc2\theta-\tan\theta1−cos2θsin2θ​=2csc2θ−tanθ

Double & Half Angle Identities

Practice: Double & Half Angle Identities
Determine the exact value for each of the following:

Double & Half Angle Identities

Practice: Double & Half Angle Identities
Determine the exact value for each of the following:

Double & Half Angle Identities

Practice: Double & Half Angle Identities
Let cos⁡θ=16\cos\theta=\dfrac{1}{6}cosθ=61​ and 0≤θ≤π20\leq{}\theta\leq{}\dfrac{\pi}{2}0≤θ≤2π​. 

More Double & Half Angle Identities Questions:

Double & Half Angle Identities

Practice: Double & Half Angle Identities
True or False? csc⁡2θ−2csc⁡2θ=sin⁡2θ\dfrac{\csc^2\theta-2}{\csc^2\theta}=\sin2\thetacsc2θcsc2θ−2​=sin2θ

Double & Half Angle Identities

Practice: Double & Half Angle Identities
True or False? sin⁡2θ1−cos⁡2θ=2csc⁡2θ−tan⁡θ\dfrac{\sin2\theta}{1-\cos2\theta}=2\csc2\theta-\tan\theta1−cos2θsin2θ​=2csc2θ−tanθ

Double & Half Angle Identities

Practice: Double & Half Angle Identities
Determine the exact value for each of the following:

Double & Half Angle Identities

Practice: Double & Half Angle Identities
Determine the exact value for each of the following:

Double & Half Angle Identities

Practice: Double & Half Angle Identities
Let cos⁡θ=16\cos\theta=\dfrac{1}{6}cosθ=61​ and 0≤θ≤π20\leq{}\theta\leq{}\dfrac{\pi}{2}0≤θ≤2π​. 

Double & Half Angle Identities

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Double & Half Angle Identities

Double & Half Angle Identities

Practice: Double & Half Angle Identities

More Double & Half Angle Identities Questions:

Double & Half Angle Identities

Double & Half Angle Identities

Double & Half Angle Identities

Double & Half Angle Identities

Double & Half Angle Identities

More Double & Half Angle Identities Questions:

Double & Half Angle Identities

Double & Half Angle Identities

Double & Half Angle Identities

Double & Half Angle Identities

Double & Half Angle Identities