5 For each of the following functions, determine its differentiability and find its derivative where it exists. x² 2-x (ii) g(x) = x² + 2x - 3| for x < 1 for x ≥ 1 (i) f(x) = { (iii) f(x) = x sin / (iv) m(x) = { x sin (1) for x 0 for x = 0 0

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