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posted by  Matsumoto on 10/30/2009 2:11:19 AM  |  status: Closed  |  Earned Karma: 25

16.4 Double Integrals in Polar Coordinates - LIFESAVER if answered in minutes!

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Calculus Multivariable Calculus (6th) by Stewart 16.4 18E 10/31/2009 at 3:00:00 PM
Question Details:
Use a double integral to find the area of the region.
The region inside the cardioid  r = 1 + cos(θ) and outside the circle  r = 3cos(θ).
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posted by velixy on 10/30/2009 6:44:00 AM  |  status: Live
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Response Details:
 r = 1+cosθ      inside the cardioid
outsied the circle r = 3cosθ 
 
 1+ cosθ  = 3cosθ
 θ =
  Area = 2
Area = 2   =  2
  =  2* = 2π
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