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-   -   Find the area of the region included between the circle: (https://www.askmehelpdesk.com/showthread.php?t=468010)

  • Apr 30, 2010, 03:23 AM
    aalokmaths
    Find the area of the region included between the circle:
    Find the area of the region included between the circle: x2 + y2 + 2 x + 10y + 27 = 0 and the parabola y2 + 10y – x + 23 = 0
  • Apr 30, 2010, 05:19 PM
    galactus

    Check and make sure there is not a typo in the circle equation. Maybe that should be -27?
    As is, it has a negative radius which is infeasible.
  • May 1, 2010, 10:37 AM
    galactus
    1 Attachment(s)

    Assuming there was a typo with the circle equation, I am going to go with



    Completing the square, we get:



    The circle has center at (-1,-5) and has radius


    Solving this for y, we get:

    and



    The parabola can be solved for y and we get:





    Now, use this info, along with some integration, to find the area.

    Please use ^ to designate powers. x2 looks like x times 2.

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