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Dick is online now
Dec13-08, 03:53 PM
Sci Advisor
HW Helper
P: 25,165
I get f_x=2x-2x(2y^2+x^2)*exp(...) and f_y=4y-2y(2y^2+x^2)*exp(...) and you came pretty close to getting it right the first time. I don't know what you did in your last response. I get five critical points.