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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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V PUBLICATION-SEQUENCES AND SERIES-QUESTIONBANK
  1. Find the sum to n terms of the given series 1 xx 2+2 xx 3+3 xx 4+4 xx...

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  2. Find the sum to n terms of the series . 1 xx 2 xx 3+2 xx 3 xx 4+3 xx ...

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

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  4. Find the sum to n terms of this series. 1/(1xx2)+1/(2xx3)+1/(3xx4)+....

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  5. Find the sum of the series . 5^2+6^2+7^2+. . ...20^2

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  6. Find the sum to 'n' terms of the series 3xx8+6xx11+9xx14+…....

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  7. Find the sum to n terms of each of the series in the following . 1^2+(...

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  8. Find the sum to n terms of the series in the following n^ (th) terms ...

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  9. Find the sum to n terms of the series whose n^ (th) terms is given by...

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  10. Find the sum to n terms of the series in the following n^ (th) terms ...

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  11. If p^(th), q^ (th) , r^ (th) and s^ (th) terms of an A.P are in G.P, t...

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  12. If a, b, c are in AP and a^(1/x)=b^(1/y)=c^(1/z) prove that x, y, z ar...

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  13. If a, b, c, d and p are different real numbers such that (a^2+b^2+c^2)...

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  14. If p,q ,r are in G . P, and the equations, p x^2+2 q x+r=0 and d x^2+2...

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  15. Show that the sum of (m+n)^(th) and (m-n)^(th) terms of an A . P is eq...

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  16. If the sum of three numbers in an. A.P. is 24 and their product is 440...

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  17. If S1,S2 and S3 are respectively the sums of n, 2n and 3n terms of an ...

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  18. Find the sum of multiple of 7 between 200 and 400.

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  19. Find the sum of integers from 1 to 100 that are divisible-by 2 or 5 .

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  20. Find the sum of all two digit numbers which when divided by 4, yields ...

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