# Prove 1+cos x/1-cos x = 1+ 2cos x(1+cos x)/sinˆ2 Please and thank you! (?)

##

The picture is just in case it wasn't clearly typed. It's question 23. Steps would be greatly appreciated.

We are using these to help us but I forget the steps.

The picture is just in case it wasn't clearly typed. It's question 23. Steps would be greatly appreciated.

We are using these to help us but I forget the steps.

##### 1 Answer

Apr 10, 2018