`cot x log sin x`

Explanation

`int cos x.log (sinx)dx" माना "log sin x=t`
`=int t dt =(1)/(2)t^(2)+c" "rArr (cosx)/(sinx)dx=dt`
`" "rArr cot x dx = dt`
`=(1)/(2)[log(sinx)]^(2)+c`