`int(1-cosx)/(1+cos x)dx` का मान है -

Explanation

`int(1-cosx)/(1+cosx)dx`
`=int(2sin^(2).(x)/(2))/(2cos^(2).(x)/(2))dx=int tan^(2).(x)/(2)dx`
`=int(sec^(2).(x)/(2)-1)dx`
`=(tan.(x)/(2))/((1)/(2))-x+c=2 tan.(x)/(2)-x+c`