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contestada

Exercise 4.3
1. Given f=x^2 y; the change in for the total differential of fis given by df = Pdx+Qdy.
Find P, Q at x=1 and y=-1
(Ans: P= -2; Q=1)

Question one

Exercise 43 1 Given fx2 y the change in for the total differential of fis given by df PdxQdy Find P Q at x1 and y1 Ans P 2 Q1 Question one class=