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If S.P and R are the sum, product and su...

If S.P and R are the sum, product and sum of the reciprocals of n terms of an increasing G.P respectively and `S^(n) = R^(n).P^(k)`, then k is equal to

A

1

B

2

C

3

D

None of these

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The correct Answer is:
B
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DISHA PUBLICATION-SEQUENCES AND SERIES -EXERCISE -1 : Concept Builder
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  3. If S.P and R are the sum, product and sum of the reciprocals of n term...

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  4. x and y are positive number.Let g and a be G.M. And AM of these number...

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  5. Suppose x and y are real numbers such that -1 lt x lt y lt 1 Let G be ...

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  6. The first two terms of a geometric progression add up to 12. The su...

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  7. An infinite GP has first term x and sum 5, then x belongs to (2004, 1...

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  8. (i) The value of x + y + z is 15. If a, x, y, z, b are in AP while the...

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  9. Given that alpha,gamma are roots of the equation A x^2-4x+1=0,a n dbet...

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  14. If a,b,c are three distinct positive real numbers which are in H.P., t...

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  15. If a,b,c are in H.P., then the value of ((1)/(b)+(1)/(c)-(1)/(a))((1...

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  16. If the 7^(th) term of a H.P is (1)/(10) and the 12^(th) term is (1)/(2...

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  17. If 1/1^4+1/2^4+1/3^4+...+oo=pi^4/90, then 1/1^4+1/3^4+1/5^4+...+oo=

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  18. If x, y and z are pth, gth and rth terms respectively of an A.P and al...

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  19. The AM, HM and GM between two number are (144)/(15), 15 and 12, but no...

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  20. If a1, a2, a3, an are in H.P. and f(k)=(sum(r=1)^n ar)-ak ,t h e n (a...

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