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Let h(x,y)=k*x^2+6xy+14*y^2+4y+10. (a) Find the minimal value of the function h for k = 2. (b)...

Let h(x,y)=k*x^2+6xy+14*y^2+4y+10.

(a) Find the minimal value of the function h for k = 2.

(b) Using envelope theorem find approximate minimal value of h for k = 1.98.

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