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Find the sum of n terms of the series 7+...

Find the sum of n terms of the series `7+77+777+`..........

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MAXIMUM PUBLICATION-SEQUENCE AND SERIES-EXAMPLE
  1. The product of first 3 terms of a GP is 1000. If 6 terms to the second...

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  2. The product of first 3 terms of a GP is 1000. If 6 terms to the second...

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  3. Find the sum of n terms of the series 7+77+777+..........

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  4. Consider the GP 3,3^2,3^3,….. Find the sum to n terms of this GP.

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  5. Consider the GP 3,3^2,3^3,….. Find the value of n so that the sum to...

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  6. Given sum of three consecutive terms in an AP is 21 and their product ...

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  7. Given sum of three consecutive terms in an AP is 21 and their product ...

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  8. Consider the GP 3,6,12,…… Which term of this GP is 96?

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  9. Consider the GP 3,6,12,…… Find the value of n so that sum to n terms...

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  10. What is the sum of the first 'n' natural numbers?

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

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  12. If the sum of the first n terms of an Arithmetic progression is Sn=nX+...

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  13. If the sum of the first n terms of an Arithmetic progression is Sn=nX+...

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  14. If the sum of the first n terms of an Arithmetic progression is Sn=nX+...

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  15. Find the sum to n terms of the series, 2^2+ 5^2+8^2+……..

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  16. Write the first four terms of the sequence whose nth term an=n/(n+1)

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  17. The sum of first three terms of a Geometric Progression is 13/12 and t...

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  18. If the numbers 5/2,x,5/8 are three consecutive terms of a GP, then fin...

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  19. Find the sum of the first n-terms of the series. 2+22+222+…..

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  20. Find the 5^th term of the sequence whose nth term is an=(n(n-2))/(n+3)

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