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Exercises: 1. Consider the function f(x, y) = ((x + y)2-2xy-y2)/x2. We expect that if x0, then f(x,y) = 1 . Set y = 103 and compute f for x = 10.0-, 10.02, 10.0-3, 10.0-4, 10.0-5, 10.0-6, 10.0-7, 10.0-8. For each value of r compute the absolute error