inttanx.tan2x.tan3xdx=...

`inttanx.tan2x.tan3xdx`=

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

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

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

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

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The correct Answer is:

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inttanx tan 2x tan 3x dx is equal to

`(1)/(3)log|sec 3x|-(1)/(2)log|sec2x|+log |secx|+C`

`(1)/(3)log|sec 3x|-(1)/(2)log|sec2x|-log |secx|+C`

`(1)/(3)log|sec 3x|+(1)/(2)log|sec2x|+log |secx|+C`

none of these