How would one go about solving the following equation?(adsbygoogle = window.adsbygoogle || []).push({});

242= 290cos(theta) + 187cos(phi)

0 = 290sin(theta) - 187sin(phi)

I have tried squaring both sides of both equations and adding them, and then using cos^{2}x + sin^{2}x = 1 to narrow some stuff down, and basically only found that:

phi + theta = 123.9 degrees.

But I still feel like I'm stuck. Maybe I'm missing an identity or something, I am terrible with those. Any help would be appreciated.

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

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

# Simultaneous Trig Equations

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