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int cos^(4)x dx=...

`int cos^(4)x dx=`

A

`(cos^(2)x-sinx)/(4)-(3)/(8)cosx sin x-(3)/(8)x+c`

B

`(cos^(2)x-sinx)/(4)+(3)/(8)cosx sin x-(3)/(8)x+c`

C

`(cos^(2)x-sinx)/(4)+(3)/(8)cosx sin x+(3)/(7)x+c`

D

`(cos^(2)x-sinx)/(4)+(3)/(8)cosx sin x+(3)/(8)x+c`

Text Solution

Verified by Experts

The correct Answer is:
D
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