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In an A.P, the first term is 2 and the s...

In an A.P, the first term is 2 and the sum of the first five terms is one-fourth of the next five terms. Show that `20^(th)` term is` -112`

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A N EXCEL PUBLICATION-SEQUENCES AND SERIES-QUESTION BANK
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  3. In an A.P, the first term is 2 and the sum of the first five terms is ...

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  5. If the m^th terms of an AP is 1/n and the n^th term is 1/m, prove that...

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  6. If the sum of certain number of terms of the AP 25,22,19,........is 11...

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

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

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  12. The ratio of the sums of m and n terms of an A.P is m^2:n^2. Show that...

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  13. If the sum of n terms of an A.P is 3n^2+5n and its m^(th) term is 164....

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  14. Insert five numbers between 8 and 26 such that the resulting sequence...

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  15. If (a^n+b^n)/(a^(n-1)+b^(n-1)) is the A.M. between a and b, find the v...

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