Help! I spent 3 hours attempting this question. Prove the following identity :(adsbygoogle = window.adsbygoogle || []).push({});

(tan x + sec x -1) / (tan x - sec x + 1) = tan x + sec x

I've simplified Left Hand Side into cos and sine. Which ended up like this

(sine x - cos x + 1) / (sine x + cos x -1)

Then I'm stuck.

Any help is very much appreciated!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Need help to prove this Identity!

**Physics Forums | Science Articles, Homework Help, Discussion**