Problem 6. Let w = in terms of x, y, fu, fv. aw and f(u, v), where u = xy and v = x/ x/y. Using the chain rule, express მე Iw მყ as a function of x, y, z Problem 7. Suppose that x²y + xz² = 5, and let w = and evaluate it numerically when (x, y, z) = (1, 1, 2). x³y. Express Iw Əz Y