A little confused on how to begin the problem(adsbygoogle = window.adsbygoogle || []).push({});

_1__ - tanx sinx = cosx

cosx

I know you change tanx to sinx/cosx but I cant seem to finish the problem, not sure if it is arithmatic errors or what?

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

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

# Homework Help: Trignometric Identities Problem

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