Question: Evaluate f/x, f / y, and f( x y) for the following function at x = y = 1 (a) Analytically and (b) Numerically x

Evaluate ∂f/∂x, ∂f / ∂y, and ∂f(∂ x ∂y) for the following function at x = y = 1 

(a) Analytically and 

(b) Numerically Δx = Δy = 0.0001:

f(x, y) = 3xy + 3x − x3 − 3y3

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