Question: The function z is defined by Find z and dz when x = 4, y = 3, x = 0.01 and y = 0.02. Z(x,

The function z is defined by

z(x, y)=xy - 3yFind Δz and dz when x = 4, y = 3, Δx = –0.01 and Δy = 0.02.

Z(x, y) = xy - 3y

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