JJ. 37.-10 40. In Exercises 39-42, other answers are possible. 39. (-5i + 9) 41. 42. erges i=1 i=1 (4i + 6) 4(3) 1 38. 2.7 Eti 1-5 43. x4 + 8xy + 24xy + 32xy + 16y4 44. 272 135zw + 225zw125w3 45. 243x5/2-4053/2 + 4 32. Concept Check Find an infinite geometric series having common ratio and sum 6. Evaluate each series that converges. Identify any that diverge. 8 8 3 34. --+ 1 4 2 3 9 1 2 --+ 33. 24 + 8 + 35. 3 1 1 1 + + 12 6 3 2 ++... 3 Evaluate each sum where x = 0, x = 1, x3 = 2, x4 = 3, X5 = 4, and x6 = 5. 37. (x-6) i=1 + +... 9 Write each sum using summation notation. 39. 4-1-6- ... - 66 41. 4+12+36 + +972 36. 0.9 +0.09 + 0.009 + 0.0009 +... 38. i=1 f(x) Ax; f(x) = (x-2), Ax=0.1 40. 10+14+ 18+ + 86 5 6 7 42. +-+ 6 7 8 +.. + 23