Hello, Gauss's law!

These are basically of the same type: .

Exactlywhereis your difficulty?

This is an 8-leaf rose curve with one leaf on the 0°-line.1) Find the area enclosed by one loop of the curve: .

To find the limits, solve

. .

Due to its symmetry, we can integrate from 0 to and multiply by 2.

We have: .

Can you finish it?