Find the derivatives of the functions f(x) = tan 2(x) and 900 = sec 2(K) respectively. What can be said about the difference f 9? Explain. Find the derivatives of the functions f(x) = tan 2(x) and 900 = sec 2 (x) respectively. What can be said about the difference f 9? Since functions with equal derivatives are always equal, it follows that f g is a constant. 93? Since functions with equal derivatives differ by a constant, it follows that f g is a constant. Since functions with equal derivatives differ by a constant, it follows that f g = D. :l |:'I I P .0 Since functions with equal derivatives are always equal, it follows that f g = O