luclaymom2981 luclaymom2981 23-05-2023 Mathematics contestada by steps 2 2 Q.1 Use a chain rule to find and if z = x*y; x = t?, dt t=3 y = t + 7. [1.5 Marks ] = in the Find the directional derivative Df of f(x, y, z) = In ln (x? + 2y? + 3z?) direction of u =- i - i - i
