Posted by Lindsey on .
Use the properties of logarithms and trigonometric identities to verify the identity.
lncot x = lncos x  lnsin x
I have no idea where to begin with this one... your help is appreciated!

Trigonometry 
Reiny,
RS = ln (cosx/sinx)
= ln cot x
= LS
using cot Ø = cosØ/sinØ
and
log A  logB = log(A/B)