Hi, I have a problem that arose in one of my courses that I've gotten stuck on. I reduced it to two equations in two unknowns but can't get any further. I've apparently forgotten all the trigonometry I used to know.(adsbygoogle = window.adsbygoogle || []).push({});

C = Acos(x) + Bcos(y)

0 = Asin(x) + Bsin(y)

where A,B,C are known but tedious to write (they are on the order of 10^(-19)).

I'd appreciate any help you can offer. I'm sure the solution will be obvious once I see it.

**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: A little bit of trigonometry

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