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QUESTION 1 Find the first order partial derivative f(x, y) y = 9x³ +43-4x 1(x,x) y 4xy O o f₁(x, y) = y² - 4x ofy 1, (0.7) 24²-425 (x,x) =
3x² 4xy 01₁ (x,y) = 9y-3² ○f₂(x, y) = − 4y + 27x of the function
Fig: 1
3x² 4xy 01₁ (x,y) = 9y-3² ○f₂(x, y) = − 4y + 27x of the function
Fig: 1
