I came across this example on the net :(adsbygoogle = window.adsbygoogle || []).push({});

We are integrating over the region that is the area inside of r = 3 + 2 sin θ and outside of r = 2, working in polar coordinates (r,θ).

What is the limits of integration for θ?

# I already know the answer. But I have no idea how to arrive at the solution.

# Do I sketch r = 3 + 2 sin θ and r = 2? r = 2 is just circle centered at origin with radius 2. What about r = 3 + 2 sin θ?

**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!

# Another Polar Coordinates + Integration Question

Loading...

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