Practice: Improper Integrals

Which of the following improper integrals are convergent?

1. 011xdx\int_{_0}^1\frac{1}{x}dx


2. 011x2dx\int_{_0}^1\frac{1}{x^2}dx


3. 011xdx\int_0^1\frac{1}{\sqrt{x}}dx


Select all of the convergent integrals.
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