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Find the sum to n terms of the series ...

Find the sum to n terms of the series
`3xx1^2+5xx2^2+7xx3^2+`………

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MAXIMUM PUBLICATION-SEQUENCE AND SERIES-EXAMPLE
  1. The 3^rd term of the sequence whose n^th term is (3/2)^(n+1)…………….

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  2. Insert three numbers between 1 and 256 so that the resulting sequence ...

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  3. If p^th term of an AP is 'q' and q^th term is 'p', where p ne q find r...

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  4. Geometric mean of 16 and 4 is …………..

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  5. Find the sum to n terms of the series: 5+55+555+………..

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  6. Find the sum of n terms of the AP, whose K^th term is ak=5K+1.

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  7. If the first three terms of an AP is x-1,x+1,2x+3, then x is……….

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  8. Find the sum to n terms of the series. 1xx2+2xx3+3xx4+4xx5+............

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  9. The nth term of the GP 5,-5/2,5/4,-5/8……………. is 5/(1024). Find 'n'.

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  10. The nth term of the GP 5,25,125, ......

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  11. Find the sum of all natural numbers between 200 and 1000 which are mul...

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  12. Find the sum of the first n terms of the series whose nth term is n(n+...

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  13. Which among the following represents the sequence whose n^th terms is ...

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  14. Using progression, find the sum of first five terms of the series 1+2/...

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  15. Calculate: 0.6+0.66+0.666+..... n terms.

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  16. The sum of the infinite series 1, 1/3, 1/9,……… Is…………….

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  17. Find the sum of all natural numbers between 100 and 1000 which is a mu...

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  18. Find the sum to n terms of the series: 8, 88, 888,…..

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  19. The 6^th term of the GP 1/2, 1/4, 1/8, …….

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  20. Find the sum to n terms of the series 3xx1^2+5xx2^2+7xx3^2+………

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