65-76 - Infinite Geometric Series Determine whether the infi- nite geometric series is convergent or divergent. If it is conver- gent, find its sum. 1 1 65. 1+ + 3 9. 27 66. 1- 2 4 8 4 8 67. 1 3 68. 9 27 25 125 3 69. 1+ 70. 36 312 3* 3 10 3 71. 3 - 2 3 3 4 72. 1-1+1-1+.. 73. 3 – 3(1.1) + 3(1.1) – 3(1.1) + ... 100 10 3 - 1 + 3 74. 9. 10 75. 2 2V 4 76. 1- V2 + 2 - 2V2 + 4 - + + + + + +

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