(7 points) You are told that the tangent line to the graph of the function y = f(x) at x = 2 has the equation y = 21ex - 40e2. Let y = mx + n +tIn2 equation be the equation of the tangent line to the graph of the function y = g(x) at x = 2, where m, n and t are some constants and the function y = g(x) satisfies the peg(I) = f(x). Find (a) m = (b) n = (c) t =