Evaluate : int(0)^(pi//4) tan ^(2) x dx...

Evaluate : `int_(0)^(pi//4) tan ^(2) x dx `

A

(a) `1-(pi)/4`

B

(b) `1+(pi)/4`

C

(c) `(pi)/4-1`

D

(d) `(pi)/4`

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The correct Answer is:

A

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