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If Delta (x)=|{:(1,cos x,1-cos x),(1+sin...

If `Delta (x)=|{:(1,cos x,1-cos x),(1+sin x,cos x,1+sinx-cosx),(sinx,sinx,1):}|` then
`f_(0)^(pi//2)Delta(x)` dx is equal to

A

`1//4`

B

`1//2`

C

`0`

D

`-1//2`

Text Solution

Verified by Experts

The correct Answer is:
D
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