1) 1, 4, 9, 16, 25....n
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2) 0, 3, 8, 15, 24 ……….. n
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3) 2, 5, 10, 17, 26......... n
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4) 2, 6, 12, 20, 30.... n
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5) 1, 8, 27, 64, 125... n
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6) 0, 7, 26, 63, 124, . . . . n
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7) 2, 9, 28, 65, 126..... n
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8) 2, 10, 30, 68, 130…….n
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9) 2, 4, 6, 8, 10, 12, 14, 16...n (EVEN SERIES)
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10) 1, 3, 5, 7, 9, 11, 13, 15 ... n (ODD SERIES)
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11) 1, 9, 25, 49, 81 ... n
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12) 1,1,4,8,9,27,16,64,25,125... n
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13) 4,12,36,108,324...n
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14)4, 7, 12, 19, 28 .....
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15)11, 13, 17, 19, 23, 25.....
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16) 6, 12, 21, 33, 48 .....
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17) 2, 5, 9, 14, 20, 27 .....
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18) 6, 11, 21, 36, 56 .....
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19) 0, 18, 28, 40, 54, 70 .....
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1.S = 9 + 99 + 8 + 89 + 7 + ………………… To n
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2.S = 1 + 1 + 2 + 3 + 5 + ..... To n
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3. S = 2 – 4 + 6 – 8 + …………………………. To n
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4.S = (1*2) + (2*3) + ………………………… To n
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5. S = 1 + (1+2) + (1+2+3) …………………… To n
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2) 0, 3, 8, 15, 24 ……….. n
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3) 2, 5, 10, 17, 26......... n
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4) 2, 6, 12, 20, 30.... n
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5) 1, 8, 27, 64, 125... n
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6) 0, 7, 26, 63, 124, . . . . n
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7) 2, 9, 28, 65, 126..... n
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8) 2, 10, 30, 68, 130…….n
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9) 2, 4, 6, 8, 10, 12, 14, 16...n (EVEN SERIES)
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10) 1, 3, 5, 7, 9, 11, 13, 15 ... n (ODD SERIES)
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11) 1, 9, 25, 49, 81 ... n
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12) 1,1,4,8,9,27,16,64,25,125... n
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13) 4,12,36,108,324...n
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14)4, 7, 12, 19, 28 .....
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15)11, 13, 17, 19, 23, 25.....
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16) 6, 12, 21, 33, 48 .....
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17) 2, 5, 9, 14, 20, 27 .....
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18) 6, 11, 21, 36, 56 .....
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19) 0, 18, 28, 40, 54, 70 .....
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Sum of Series
1.S = 9 + 99 + 8 + 89 + 7 + ………………… To n
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2.S = 1 + 1 + 2 + 3 + 5 + ..... To n
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3. S = 2 – 4 + 6 – 8 + …………………………. To n
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4.S = (1*2) + (2*3) + ………………………… To n
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5. S = 1 + (1+2) + (1+2+3) …………………… To n
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