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Math Help - critical points calc 3

  1. #1
    Junior Member
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    critical points calc 3

    im having trouble finding c.ps
    <br />
f(x,y)=(x^2 - 3xy + y^2)e^-(x^2 + y^2)<br /> <br />

    so far i have (0,0)

    after adding and subtracting the partial derivatives

    are there any other?
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  2. #2
    MHF Contributor

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    Quote Originally Posted by statman101 View Post
    im having trouble finding c.ps
    <br />
f(x,y)=(x^2 - 3xy + y^2)e^-(x^2 + y^2)<br /> <br />

    so far i have (0,0)

    after adding and subtracting the partial derivatives

    are there any other?
    Put { } around anything you want as exponent:
    f(x,y)= (x^2- 3xy+ y^2)e^{-(x^2+ y^2)}.

    I'm not at all clear why you would "add and subtract partial derivatives". What did you get for the partial derivatives?
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