Problem 2: Indicate the appropriate trigonometric substitution that you should use to evaluate the following integrals: itx 2 = >x = tane Integral C = 1 - *2 = ) x = sine x 2 + 4 X + 11 = ( * +2) +7 X =1 = > *= Sece x2 + 4x + 11 H * = a sin G = > vaz x2 x2 V1 - x2 sine x = a tanG = > Va24 x 2 H dx x = asec @ = >v x2-a2 V(x+ 1) 2 - 4 (9x2 - 1)3/2 Page 1 of 64C Math 1132 Exam 1 1- 4 1+ 4 Problem 6: If x - 3 = 4 tan(0), use a triangle to determine which is a correct application of a change of variables back to x for the expression cos(0). 2x - 3 (A 4vx2 - 6x + 25 x2 +6x -25 Vx2 - 6x + 25 x2 - 6x + 25 e Vx2 - 6x+ 25 Problem 7: The function y = f(x) is graphed below. Order the left approximation (L2), right approximation (R2), midpoint approximation (M2), trapezoidal approximation (T2),Problem 7: The function y = f(x) is graphed below. Order the left approximation (L2), right approximation (R2), midpoint approximation (M2), trapezoidal approximation (T2), and the integral / f(x) dx (1), from smallest to largest. ( A) R2