jerrygentry3302 jerrygentry3302 27-05-2023 Mathematics contestada Use the Chain Rule to find the indicated partial derivatives. z = x² + x²y, X x = s + 2t - u, y = stu²; дz дz дz Əs' at au when s = 4, t = 2, u = 3 əz /əs = дz /at = дz/ ди =