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Find the 20th and nth term of the GP. ...

Find the 20th and nth term of the GP.
`5/2, 5/4, 5/8`………

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The correct Answer is:
`5/(2^(20)) ,5/(2^n)`
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NCERT TAMIL-SEQUENCES AND SERIES-EXERCISE 9.3
  1. Find the 20th and nth term of the GP. 5/2, 5/4, 5/8………

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  2. Find the 12th term of a G.P. whose 8th term is 192, and the common rat...

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  3. The 5^(th), 8^(th) and 11^(th) terms of a G.P are p,q and s , respecti...

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  4. The 4^(th) term of a G.P. is square of its second term, and the first...

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  5. Which term of the following sequences: (a) 2,2sqrt4,4.......... is 1...

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  6. For what values of x, the numbers -2/7 , x, -7/2 are in G.P ?

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  7. Find the sum to indicated number of terms in each of the geometric pro...

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  8. Find the sum to indicated number of terms in each of the geometric pro...

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  9. Find the sum to indicated number of terms in each of the geometric pro...

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  10. Find the sum to indicated number of terms in each of the geometric pro...

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  11. Evaluate sum(k-1)^11(2+3^k)

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  12. The sum of first three terms of a G.P. is and their product is 1. Find...

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  13. How many terms of G.P. 3, 3^(2), 3^(3), … are needed to give the sum 1...

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  14. the sum of the first six terms of a GP is 9 times the sum of the first...

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  15. If the first term of a G.P. is 729 and its 7^(th) term is 64, then the...

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  16. Find a G.P. for which sum of the first two terms is – 4 and the fifth ...

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  17. If the 4th, 10th and 16th terms of a G.P. are x, y and z, respectively...

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  18. Find the sum to n terms of the sequence, 8, 88, 888, 8888… .

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  19. Find the sum of the products of the corresponding terms of the sequenc...

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  20. Show that the products of the corresponding terms of the sequences a, ...

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