- #1

- 101

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## Homework Statement

Inside the cardioid r=2(1+sin(theta)) and outside the circle r=2sin(theta)

## Homework Equations

A= ∫ (from a..b) 1/2 f(θ)

^{2}dθ

## The Attempt at a Solution

A= 2∫(from π/2..3π/2) 1/2 [2(1+sin(θ)]

^{2}dθ- 2∫(from0..π/2) 1/2 (2sinθ)

^{2}dθ

after working that out i got the answer to be 5pi.

i need a verification for my answer because it is an even problem in the book and i'm studying for my test.