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int (cos x - sin x)/ (1+2 sin x cos x ) ...

`int (cos x - sin x)/ (1+2 sin x cos x )` dx is equal to a)`- 1/(cos x- sin x)+c` b)`(cos x + sin x)/(cos x- sin x)+c` c)`- 1/(cos x+ sin x)+c` d)`x_1/(sin x+ cos x)+c`

A

`- 1/(cos x- sin x)+c`

B

`(cos x + sin x)/(cos x- sin x)+c`

C

`- 1/(cos x+ sin x)+c`

D

`x_1/(sin x+ cos x)+c`

Text Solution

Verified by Experts

The correct Answer is:
C
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