7. Given that w = xạy z; x = st?: y = 2s – t; and z = 3t. a) Construct a tree diagram illustrating the dependencies of t

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7. Given that w = xạy z; x = st?: y = 2s – t; and z = 3t. a) Construct a tree diagram illustrating the dependencies of the variables. Label edge of the diagram with the appropriate partial derivative. b) Using your diagram, write out the chain rule to determine the derivative of w with respect to s. c) Using the chain rule from part b, determine as d) Write your answer to part c, in terms of s and t. , aw e) Now, determine (in terms of s and t) by the same method. дw at