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int (1+cos4x)/(cotx-tanx)dx=...

`int (1+cos4x)/(cotx-tanx)dx=`

A

`-1/4 cos 4x+c`

B

`1/8 cos 4x +c`

C

`1/4 sin 4x+c`

D

`-1/8 cos4x +c`

Text Solution

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The correct Answer is:
D
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