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Justify whether it is true to say that the following are the `n^(th)` terms of an AP.
`1+n+n^2`

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AGRAWAL PUBLICATION-ARITHMETIC PROGRESSIONS-EXAMPLE
  1. Justify whether it is true to say that the following are the n^(th) te...

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  2. Justify whether it is true to say that the following are the n^(th) te...

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  3. Justify whether it is true to say that the following are the n^(th) te...

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  4. Find a, b, and c such that the following numbers in AP: a,7, b, 23, c.

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  5. Determin the AP whose 5^(th) term is 19 and the difference of 8^(th) t...

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  6. Th sum of the first 30 terms of an A.P I 1920. If the fourth term is 1...

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  7. Which term of the A.P 20, 19 1/4 , 18 1/4, 17 1/4, ….. is the first ne...

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  8. Find the middle term of the A.P 7,13,19,……,247.

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  9. Split207 into three parts uch that these are in AP and the product of ...

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  10. How many numbers lie between 10 and 300, which when divided by 4 leave...

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  11. Find the sum of the two middle most terms of the AP: -4/3, -1,-2/3, …....

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  12. Show that the sum of all terms of an A.P whose first term is a, the se...

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  13. The first term of an ap is -5 and the last term is 45. If the sum of t...

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  14. If Sndenotes the sum of first n terms of an AP, prove that S(12) = ...

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  15. If the sum of the first 6 terms of an AP is 36 and that of the fist 16...

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  16. The sum of the first n terms of an AP whose first term is 8 and the co...

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  17. If m^(th) term of an A.P. is 1/n and n^(th) term is 1/m. Find the sum ...

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  18. Find the sum of n terms of the series (4 -1/n) + (4 - 2/n) + (4- 3/n) ...

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  19. For what value of n are the n^(th) terms of two A.P's 63,65,67, ….. An...

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  20. Find the sum of the first 40 positive integers which give a remainder ...

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