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Знайти повний диференціал функції z= 3x2 y3 -2 x y3 -x .
dz=(2y3 (3x-1)-1)dx+ (3x-1)dy
dz=(2y3-1)dx+3xy2 (3x-1)dy
dz=(2y3 (3x-1)-1)dx+3xy2 (3x-1)dy
dz=2y3 (3x-1)dx+3xy2 (3x-1)dy
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