Question: ulat the polynomial -3x - x + 2 has three real roots. 4J. Prove that f(x) = x2 - cos(x) - 2 = 0 has

ulat the polynomial -3x - x + 2 has three real

ulat the polynomial -3x - x + 2 has three real roots. 4J. Prove that f(x) = x2 - cos(x) - 2 = 0 has at least one solution on [0, 7]. 42. (a) A critical point of a function f : X - R is a point c E X

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