Given the function V(x,y,z) = x² In(y – xz) a. Solve all the first-order derivatives of V(x,y,z). Do not simplify you- b. Initially, x = 3, y = 4e¬3, z = e-3. Approximate the change in W if: a. Only x changes and it changes to –1; b. Only z changes and it changes to 0.5e¬3; c. x changes to –1 and z changes to 0.5e¬3 at the same time;

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