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3,6,12,…….r = …………....

3,6,12,…….r = ………….

A

1

B

10

C

3

D

none

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BEYOND PUBLICATION-PROGRESSIONS-EXERCISE
  1. 10,100,1000,…..,r= ……

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  2. 1 + 1/2 + 1/(2^2)+………., r = ……………….

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  3. 3,6,12,…….r = ………….

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  4. a,a^(2),a^(3), ……….., r = ……………….

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  5. a,b,c are in AP then 1/a, 1/b, 1/c are in ………….

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  6. GM of x, y, z is ………….

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  7. The nth term if a GP = a(n) = ar^(n-1) here 'r' means ........

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  8. The 'n' th term of an A.P. is a(n)=3+2n then the common difference is ...

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  9. The common difference of the AP x-y, x, x+y is ……….

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  10. The common difference of the AP 2a-b, 4a-3b, 6a-5b is ………..

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  11. In a GP a(1) = 20 and a(4) = 540 then r = …………..

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  12. Formula for sum of 'n' terms in an AP = …………..

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  13. In an A.P the 3^(rd) term = 5 and 7^(th) term = 9 then the common diff...

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  14. In the formula of n^(th) term of term of a Geometric Progression a(n)=...

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  15. Which of the following is a GP with a common ratio r=sqrt2.

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  16. Which term of the G.P.3,9,22,…. Is 243?

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  17. The series (n-1),(n-2),(n-3),…. Is a type of

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  18. If log a, log b, log c are in A.P. then a,b,c are

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  19. pi+2,pi,pi-2,pi-4,….write the first term and the common difference.

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  20. If the 5^(th) and 10^(th) terms of an A.P. are -6 and -21 respectively...

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