Final practice exam 4 (solution) - FINAL PRACTICE EXAM IV...

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FINAL PRACTICE EXAM IVYI LI1.Letf(x, y) =x2-y2with constraint function2x+y= 1.Using Lagrange multipliers to find all extrema.
2.Consider the system of linear equations2x-y+ 3z= 32x+y+ 4z= 42x-3y+ 2z= 2Find the augmented matrix of the above system and use it to solve the system.
3.Letf(x, y) =p4-x2-y2.(a) Find the largest possible domain and the corresponding range off(x, y).(b) Computefx(1,1) andfy(1,1).1
2YI LI

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