(MVT) The function f is defined by f(x) = 3x - 4cos(2x +1), and its derivative is f'(x) = 3+8 sin (2x +1). What %3D are all values of x that satisfy the conclusion of the Mean Value Theorem applied to f on the interval [-1, 2]? (A) -0.692 and 1.263 (B) -0.479 and 1.049 (C) 0.285 (D) 0.517 (E) 1.578

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