int (0)^(pi//4) sec^(7) theta sin^(3) th...

` int _(0)^(pi//4) sec^(7) theta sin^(3) theta d theta ` is equal to

A

(a) `1/12`

B

(b) `3/12`

C

(c) `5/12`

D

(d) `7/12`

Verified by Experts

The correct Answer is:

C

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