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Given sum of three consecutive terms in ...

Given sum of three consecutive terms in an AP is 21 and their product is 280.
Find the middle term of the above terms.

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MAXIMUM PUBLICATION-SEQUENCE AND SERIES-EXAMPLE
  1. Consider the GP 3,3^2,3^3,….. Find the sum to n terms of this GP.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Write the sum of first n natural numbers.

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  19. The 5^th, 8^th and 11^th terms of a GP are p, q and s respectively. Pr...

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  20. A man starts repaying a loan as first instalment of Rs. 1,000. If he ...

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