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The sum of the first p,q,r terms of an A...

The sum of the first p,q,r terms of an AP are a,b,c respectively, prove that
`a/p(q-r)+b/q(r-p)+c/r(p-q)=0`

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MAXIMUM PUBLICATION-SEQUENCE AND SERIES-EXAMPLE
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  3. The sum of the first p,q,r terms of an AP are a,b,c respectively, prov...

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  4. The ratio between the sums to n terms of two AP is 7n+1:4n+27. Find th...

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  5. If the sum of p terms of an AP is the same as the sum of its q terms, ...

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  6. The sum of the first two terms of a GP Is -4 and the fifth term is 4 t...

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  7. The sum of the first two terms of a GP Is -4 and the fifth term is 4 t...

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  8. The sum of three numbers in GP is 38 and their product is 1728. Find t...

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  9. Find the three numbers in GP whose sum is 13 and the sum of whose squa...

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  10. Find the sum to n terms of this series. 1times4+3times7+5times10+…….

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  11. Find the sum to n terms of this series. 1times2^2+2times3^2+3times4^...

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

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

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  14. Find the sum to n terms of this series. 1^2+3^2+5^2+……….

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  15. nth tern of some sequence are given below. Which term can be the n th ...

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  16. if the sum of 12^th and 22^th terms of an AP is 100. Find the sum of f...

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

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

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

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

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