Problem #3: The tangent plane of f(x,y) = 2x²y - 4xy at the point (1,1) can be expressed in the form z = ax + by + c. 1 (a) What is the value of a? (b) What is the value of c? Problem #3(a): 2 Problem #3(b): Problem #3: The tangent plane of f(x, y) = 5x²y-3xy at the point (1,1) can be expressed in the form = = ax +by+c. (a) What is the value of b? (b) What is the value of c? Problem #3: The tangent plane of f(x,y) = 2x2y-4xy at the point (1,1) can be expressed in the form = ax+by+c. 3 (a) What is the value of b? (b) What is the value of c?

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