(adsbygoogle = window.adsbygoogle || []).push({}); trig equation... :(

Hey everyone,

I have to solve this equation below:

1+cos(x)+cos(2x)=sin(x)+sin(2x)+sin(3x)

After too many simplifications and factorizations, I got to: (I hope it's right tho)

(2sinxcosx)(2cosx+1)=cos(x)(1+2cosx)

So yeah, I factorized everything pretty much, but what step to take after that, so I can solve this equation ??

Thanks,

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

Dismiss Notice

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: Trig equation

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