I need help with finding areas. I'm having trouble picking the correct limits for my integration.(adsbygoogle = window.adsbygoogle || []).push({});

Say for example we had r=2cos2t and a half-line t=pi/6, and I want to find the small area bounded between them.

[tex]\frac{1}{2}\int (2\cos (2\theta))^{2}\,d\theta[/tex]

I can do the integration, but what do I choose as its limits?

I'm not particularly interested in the answer to this question; I'm looking for a good explanation or maybe a couple of pointers.

**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!

# Polar coords

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