Question

Find the area enclosed by the curve r=3cos(theta)

Answer 1

measure the distance our radius covers from origin to tthe function and sum up those values from 0 to 360 degrees

Answer 2

\[\int_{0}^{2pi}\int_{0}^{3cos(t)}r\ drdt\]

Answer 3

\[\int_{0}^{2pi}\frac{1}{2}9cos^2(t)dt\]