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8. Definite Integrals - 2! 1부

8. Definite Integrals / Introduction to Definite Integrals / 문제 7

문제 7

Find the exact value of the following definite integral:
$\int_{0}^{\frac{π}{2}} \cos^{4} x d x$

A

$3 pi over 16$

B

$5 pi over 32$

C

$3 pi over 8$

D

$5 pi over 64$