Question

Sketch the region enclosed by the given curves.
y = 5 cos 2x, y = 5 − 5 cos 2x, 0 ≤ x ≤ π/2
what its area

Answer 1

\[\int\limits_{0}^{2\theta}\int\limits_{0}^{5-5\cos 2x}rdrd \theta\]

Answer 2

whats r?

Answer 3

What level are you? Have you done double integrals?