1. Find the total derivative dz/dy, given (a) z= f(x, y) = 5x + xy – y², where x = 9(y) = 3 y2 (b) z= 4x2 – 3xy+ 2y², where x = 1/y (c) z= (x + y)(x - 2y), where x = 2– 7y %3D

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Q: 1. Find the total derivative dz/dy, given (a) z = f(x, y) = 5x + xy - y2, where x = g(y) = 3y² (b)…

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