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Find the sum to n terms of the sequence ...

Find the sum to n terms of the sequence
`7,77,777,7777,…….`

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MAXIMUM PUBLICATION-SEQUENCE AND SERIES-EXAMPLE
  1. The 5^th, 8^th and 11^th terms of a GP are p, q and s respectively. Pr...

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

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  3. Find the sum to n terms of the sequence 7,77,777,7777,…….

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  4. Consider the AP 4,10,16,22,…… Find its common difference and the 7^th ...

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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. The 6^th term of the sequence whose n^th term is tn=(2n-3)/6 is ………………...

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  7. Find the sum to infinity of the sequence 1,1/3,1/9,………

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  8. If a, b, c are in AP and a^(1/x)=b^(1/y)=c^(1/z) prove that x, y, z ar...

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  9. In an AP, the first term is 2 and the sum of the first five terms is ...

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  10. In an AP, the first term is 2 and the sum of the first five terms is ...

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  11. If AM and GM of two numbers are 10 and 8 respectively, find the number...

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  12. In an AP if m^th term is 'n' and n^th term is 'm', find the (m+n)^th t...

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  13. If 3^rd, 8^th and 13^th th terms of a GP are x,y,z respectively, prove...

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  14. Prove that 3^rd, 8^th and 13^th th terms of a GP are x,y,z satisfies t...

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  15. Which of the following is the nth term of an AP?

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  16. Find the 10^th term of the sequence -6,-11/2,-5,…………...

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  17. The sum of the first three terms of a GP is (39)/(10) and their produc...

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  18. Find the 10^th term of an AP whose nth term is (2n-3)/6.

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  19. Find the sum of the first 10 terms of the AP which is (2n-3)/6.

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  20. Find the sum of the first 10 terms of a GP, whose 3^rdterm is 12 and 8...

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