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If f(x)=|{:(cosx,1,0),(1,2cosx,1),(0,1,2...

If `f(x)=|{:(cosx,1,0),(1,2cosx,1),(0,1,2cosx):}|" then "int_(0)^(pi//2)f(x)dx=`

A

`1/2`

B

`- 1/2`

C

`- 1/3`

D

`1/3`

Text Solution

Verified by Experts

The correct Answer is:
C
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