9. Find the relative minima of f (x) = cos (11x) on the interval (0, 1.142) by applying the First Derivative Test. Round numerical values in your answer to three decimal places. A) relative minima: (0.571, 0), (0.714, 0), (1.000, 0), (0.428, 0) B) relative minima: (0.143, 0), (0.286, 0), (0.571,0) C) relative minima: (0.286, 1), (0.571, 1), (0.857, 1) D) relative minima: (0.286, 0), (0.571, 0), (0.857, 0) E) relative minima: (0.143, 0), (0.428, 0), (0.714, 0), (1.000, 0)