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Let Sn=1+1/2+1/3+1/4+......+1/(2^n-1). T...

Let `S_n=1+1/2+1/3+1/4+......+1/(2^n-1).` Then

A

`a (200) gt 100`

B

`a (100) gt 100`

C

`a (50) lt 25`

D

none of these

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A
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MCGROW HILL PUBLICATION-PROGRESSIONS-EXERCISES LEVEL-1 (Single Correct Answer Type Questions)
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  3. Let Sn=1+1/2+1/3+1/4+......+1/(2^n-1). Then

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  4. Let S=4/19+44/(19)^2+444/(19)^3+...oo then find the value of S

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  10. The sum to infinity of the series 1+(4)/(5)+(7)/(5^(2))+(10)/(5^(3))...

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  11. If the sum of n terms of an A.P. is 3n^(2)+5n and its mth term is 164,...

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  12. If G1 and G2 are two geometric means and A is the arithmetic mean inse...

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  13. If A(1),A(2) be two A.M.'s and G(1),G(2) be two G.M.,s between a and b...

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  15. The value of 2^(1/4).4^(1/8).8^(1/16),,,,,,,oo is equal to.

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  16. . The sum of an infinite number of terms of a G.P. is 20, and the sum ...

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  17. The eighth term of a geometric progression is 128 and common ratio is ...

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  18. l, m,n are the p^(th), q ^(th) and r ^(th) term of a G.P. all positive...

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  19. If a1, a2, a3, be terms of an A.P. if (a1+a2++ap)/(a1+a2++aq)=(p^2)/(...

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  20. The sum of 10 terms of the series sqrt2 + sqrt6 + sqrt18 +... is

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