Let r = x² + y – z and z³ – xy + yz + y³ = 1. Assume that x and y are independent ar is variables. At (x, y,z) = (2,-1, 1), the value (correct to two decimal places) of

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Q: Let f(x, y) = vax?y? + by. Compute f,(c, d) for the following values: a = 9, b = 3, c =3, d = 2.…

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