Question

∫cot(3-7x)

Answer 1

Does this make it simpler.

\[\int\limits_{?}^{?} \frac{ \cos(3-7x) }{ \sin(3-7x) }dx\]

use u substitution for the (3-7x)

\[u =3 -7x , \frac{ du }{ dx } = -7\]

after that you can do\[\frac{ du }{ -7 } = dx\]

than can you solve \[\frac{ 1 }{ -7 }\int\limits_{?}^{?} -7\frac{ cosu }{ sinu } du\]

than you can easily solve this.