Question: Consider the function f(x) = (1 + sin x). Show that f(3/2 h) = 2 sin 1/2 h (h > 0) and deduce

Consider the function f(x) = √(1 + sin x). Show that f(3π/2 ± h) = √2 sin 1/2 h (h > 0) and deduce that f´(x) does not exist at x = 3π/2.

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