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Find the derivatives of the functions f(x) = tan (x) and g(x) = sec (x) respectively. What can be said about the difference f - g? Explain. ... Find the derivatives of the functions f(x) = tan "(x) and g(x) = sec "(x) respectively. 1' (X) = g'(x) = What can be said about the difference f - g? O A. Since functions with equal derivatives differ by a constant, it follows that f - 9 = 0. O B. Since functions with equal derivatives are always equal, it follows that f - g = 0. O C. Since functions with equal derivatives are always equal, it follows that f - g is a constant. O D. Since functions with equal derivatives differ by a constant, it follows that f - g is a constant