<p>If anyone can help me solve this problem, it'd be greatly appreciated.</p>
<p>Find the area of the region that lies inside both curves.</p>
<p>r = a sin θ, r = b cos θ, a>0, b>0</p>
<p>and this is the area formula:
A = ∫ (1/2) r^2 dθ</p>
<p>you plug in a for b and b for a... you're done! :D</p>