Final practice exam 2 (solution) - FINAL PRACTICE EXAM II...

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FINAL PRACTICE EXAM IIYI LI1.Letf(x, y) =x+ywith constraint function1x+1y= 1,x6= 0, y6= 0.Using Lagrange multipliers to find all local extrema. Are these global extrema?
2.Consider the system of linear equations-2x+ 4y-z=-1x+ 7y+ 2z=-43x-2y+ 3z=-3Find the augmented matrix of the above system and use it to solve the system.
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2YI LI

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