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Math Help - Find the area of region bounded by two equations

  1. #1
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    Find the area of region bounded by two equations

    Find the area of the region bounded by curve  9x^2 + 25y^2 = 225 and outside the circle  x^2+y^2 =9

    Can someone pls explain how to solve this? Thanks in advance.
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  2. #2
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    Re: Find the area of region bounded by two equations

    The area of an ellipse is \displaystyle \begin{align*} \pi \, a \, b \end{align*}, and the area of a circle is \displaystyle \begin{align*} \pi \, r^2 \end{align*}.

    Can you recognise what the values of a and b are from the equation of your ellipse? Can you recognise what the radius is from the equation of your circle?
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    Re: Find the area of region bounded by two equations

    Ok. Thanks for prompting me. Yeah sure I can solve the rest already. Thanks!
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