ANSWER ALL OF THE FOLLOWING QUESTIONS A. Write the letter that corresponds to your answer. If the answer is not found in the choices, write E. 18. The antiderivative S , dx is AVx7 + C 3 v x3 + C C . - Vx7 + C d. - my 4x V x + C 19. Evaluate S(x2 + 2x + 1) (3x + 1)dx a. (2x + 2) (3) + C b. 2 + 20- + 1 + C C. 3x* + 7x5 + 5x" + x + Cd. (3x + 1)(2x +2) + c 20. Evaluate S 8 sin(2x)dx . a. -4 cos(2x) + C b. -8 cos(x) + C C. -8 cos(2x) + C d. -4 sin(8x) + C 21. Evaluate S ex-7dx. a. 6x - 7+ C b. ex-7 c. e6 + C d. e + C 22. Evaluate S (7x - 2)2dx. a. (7 - 2x)3+ C b. 2(7x - 2) + C C. (7x-2)" + C 21 d. 14x - 4+ C 23. Evaluate S (x2 + 3)22xdx. a. = (x2 + 3)2 + C b. = ( x + 3 ) 2 + C C. (x2 + 3 )3 + C d. = ( x2 + 3 ) 3 + C 24. Evaluate J (3x+1)3 dx. a. (3x + 1 )= + C b. 3 (3x + 1 ) + C C . (3x + 1 ) - 3 + C d. - - 6 (3x+1)2 + C 25. Evaluate S 8xv4x2 + 3 dx a. = ( 4x2 + 3 ) 2 + C b. V8x + C C. 2 (4x2 + 3 )2 + C d. (4x2 + 3)2+ C _26. Evaluate S (3 + x4)3x3 dx. a . ( x 4 + 3 ) 3 + C b. 3 ( x4 + 3)3 + C C. 3 (x4+ 3)3 + c d. 3 (x3 + 3)3 + C 27. Evaluate the integral Sex-1dx. a. 6x - 1 + C b. e6x-1 + C C-ex-1 + C d. 6x + C 28. Evaluate the integral S 5e2x+7 dx. a. =e2x+7 + C b. (2x + 7 ) + C =e2x+7 + C d. 5e2x + C 29. Evaluate S csc2 (3x + 1)dx. a. 3cot ( 3x+ 1) + C b. 3 tan (3x+1) " sec2(3x+1) + C d. . -+ C * 3cotx 30. Evaluate S sec2 (5x - 3)dx. a. csc2 (5x-3) + C 3 b. tan(5x-3) + C tan(5x-3) + C 5 3 d. cot(5x-3) + C 5 16. The antiderivative S(x2 + x + 1) is a. + + x + C b. 2x + 1 + C C. x3+ x 2 + x + C 17. The antiderivative S dx is d. x x2 2+ x + c . Ax+ + C 2x4 + C C. - 75 + C d. - 4x 4 + C