int (0) ^(pi//4) sin (x- [x])d (x-[x]) i...

`int _(0) ^(pi//4) sin (x- [x])d (x-[x])` is equal to

A

`1/2`

B

`1-1/(sqrt(2))`

C

`1`

D

None of these

Verified by Experts

The correct Answer is:

B

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