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Find the location of the critical point of the function f(x,y)= kx^(2)+3y^(2)-2xy-24y (in terms of k)...

Find the location of the critical point of the function f(x,y)= kx^(2)+3y^(2)-2xy-24y (in terms of k) of t. The classify the values of k for which the critical point is a:

I) Saddle Point

II) Local Minimum

III) Local Maximum

Math   Calculus   
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