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Let f(x)=|[sec^2x,1,1],[cos^2x,cos^2x,co...

Let `f(x)=|[sec^2x,1,1],[cos^2x,cos^2x,cosec^2x],[1,cos^2x,cot^2x]|`, then`∫ _ 0 ^( π/2) ​ ​ f(x)dx=`

A

`1/4`

B

`(pi)/(2)`

C

`(pi)/8`

D

`(3pi)/16`

Text Solution

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The correct Answer is:
A, B, C, D
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