Find the area of the region bounded by: r = 9 − 4 sinθ

I tried this multiple times and the answer i got was 381.7035 but that is not correct.

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- July 21st 2010, 11:08 AMmuddyjchPolar coordinates area of the region bounded problem
Find the area of the region bounded by: r = 9 − 4 sinθ

I tried this multiple times and the answer i got was 381.7035 but that is not correct. - July 21st 2010, 01:01 PMHallsofIvy
- July 21st 2010, 01:20 PMSoroban
Hello, muddyjch!

Quote:

Find the area of the region bounded by: .

This is a heart-shaped region symmtetric to the "y-axis".

We can integrate from to and multiply by 2.

We have: .

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But check my work . . .*please!*