o T MAT 271 - Calculus QUIZ #4.2 - Definite Integrals and Riemann 1. Given the function f (x) = 2x + 1, calculate the area between the graph of f and the X axis on the interval [-1, 3] using two different methods. (Definite Integral, Geometric Formulas, Riemann Sums Approximation) 2. Given the function f (x) = x2 + 2x - 3, calculate the area between the graph of f and the X axis on the interval [-1, 4] using two different methods. (Definite Integral, Geometric Formulas, Riemann Sums Approximation) 3. Evaluate the integrals: (5 4x2-2x+1 dx a. S x b. S = dx c. fix[cos(2x) - sin(3x) ] dx d. So x241 f. J. tan (2x) dx