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int tanx.tan2x.tan3xdx=...

`int tanx.tan2x.tan3xdx`=

A

`-ln|cosx|-1/2ln|sec2x|+1/3ln|sec3x|+C`

B

`-ln|secx|-1/2ln|sec2x|+1/3ln|sec3x|+C`

C

`ln|cosx|+ln|cos2x|+ln|cos3x|+C`

D

`ln|secx|+1/2ln|sec2x|+1/3|sec3x|+C`

Text Solution

Verified by Experts

The correct Answer is:
b
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