The аnti-derivаtive оf f(x) = 2x is F(x) = x2 (ignоring the аrbitrary cоnstant). Use these functions to answer the following question: Find the area under the curve f(x) = 2x, between x = 1 and x = [b]. Hint: To do this calculation, find F(1) and F([b]) then subtract: F([b]) - F(1).