Question

Integrate

Answer 1

\[cotx=\frac{ cosx }{ sinx }\]
u=sinx
du=cosxdx

Answer 2

ok...after that ?

Answer 3

yep

Answer 4

\[\int\limits_{}^{}\frac{ du }{ u }=lnu +C =\ln(sinx)+c\]

Answer 5

ok

Answer 6

you have to change u to cosx in last question..also put +c. sorry abt that :)