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Question 7 3 pts . Use first order forward difference approximation with step h = 0.1 to determine the first derivative of f(x) = x sin x at x = 2. f' (2) = (round to the second decimal place, use radians) . Laplace operator A is discretized using central differences on a square grid with step hy = hy = 1. Determine f at point (2, 2) for f(x, y) = zy