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If Delta(x)=|(1,cosx,1-cosx),(1+sinx,cos...

If `Delta(x)=|(1,cosx,1-cosx),(1+sinx,cosx,1+sinx-cosx),(sinx, sinx ,1)|` then `int_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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