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Single Variable Calculus

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Moderate

Trigonometric Substitution 1

SVCALC-AEIELY

Evaluate the integral:

$$\int \frac{1}{\sqrt{4-x^2}} dx$$

A

$\arccos\cfrac{x}{2}+C$

B

$\arcsin\cfrac{x}{2}+C$

C

$\cfrac{1}{2}\arcsin x+C$

D

$\cfrac{1}{2}\arccos x+C$