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Evaluate: int0^(pi//2)sqrt(costheta)sin^...

Evaluate: `int_0^(pi//2)sqrt(costheta)sin^3theta` `d theta`

A

(a) `20/21`

B

(b) `8/21`

C

(c) `(-20)/21`

D

(d) `(-8)/21`

Text Solution

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The correct Answer is:
B
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