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(1 Point) Suppose W = "+9, Where Y Z X = Ezt, Y= 2 + Sin(4t), And Z = 2 + Cos(4t). A) Use The Chain

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(1 point) Suppose w = "+9, where Y Z x = ezt, y= 2 + sin(4t), and z = 2 + cos(4t). A) Use the chain rule to find aw as a function of x, y, z, and t. Do not rewrite x, y, and z in terms of t, and do not rewrite ezt as x. dw = dt Note: You may want to use exp() for the exponential function. Your answer should be an expression in x, y, z, and t; e.g. "3x - 4y" B ) Use part A to evaluate dw when t = 0.