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Find the sum to indicated number of term...

Find the sum to indicated number of terms in each of the geometric progressions in
0.15, 0.015, 0.0015 ,.........20 terms .

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The correct Answer is:
`1/6[1-(0.1)^(20)]`
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NCERT BANGLISH-SEQUENCES AND SERIES-EXERCISE 9.3
  1. Which term of the following sequences: (a) 2,2sqrt2,4.......... is 1...

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

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

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

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

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

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

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  8. The sum of first three terms of a G.P. is 39/10 and their product is 1...

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  9. How many terms of G.P. 3, 3^2, 3^3, … are needed to give the sum 120?

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  10. The sum of first three terms of a G.P. is 16 and the sum of the next t...

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  11. Given a G.P. with a = 729 and 7^("th") term 64, determine S7 .

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

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

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

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

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

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  17. Find four numbers forming a geometric progression in which the third t...

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  18. If the p^("th"), q^("th") and r^("th") terms of a G.P. are a, b and ...

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  19. If the first and the n^("th") term of a G.P. are a and b, respectivel...

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  20. Show that the ratio of the sum of first n terms of a G.P. to the sum o...

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