(a) Find the derivative of g(x) = 5arctan( for x > 0. Simplify your answer. g'(x) = (b) Find the derivative of h(x) = 5arctan(x) + 5arctan(¹) n(1) for x > 0. Simplify your answer. h'(x) = (c) What does your result in part (b) tell you about h(x) for x > 0 ? Oh(x) is constant. O h(x) is increasing. Oh(x) is decreasing.

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