Find the most general antiderivative of f(x) = 7x + 4 sec x tan x. Answer: (7x19/9) + 4sec(x) E\f4 10 A curve y = f(x) defined for values of x > 0 goes through the point (1, O) and is such that the slope of its tangent line at (x, f(x)) is 3 , for x x x > 0. Find f(x). f(X)= 2 ,x>0