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int sin 4x cos 3x dx =...

`int` sin 4x cos 3x dx =

A

`(1)/(2) `(cos 7x + cos x ) + c

B

`(1)/(14)` ( cos 7x + `(1)/(2)` cos x ) + c

C

`- (1)/(14)` (cos 7x + 7 cos x ) + c

D

`(1)/(14)` (cos 7x + 7 cosx ) + c

Text Solution

Verified by Experts

The correct Answer is:
C
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