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1+(3)/(2)+(5)/(2^(2))+(7)/(2^(3))+.. .. ...

`1+(3)/(2)+(5)/(2^(2))+(7)/(2^(3))+.. .. to infty=`

A

1)4

B

2)8

C

3)5

D

4)6

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The correct Answer is:
B
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HIMALAYA PUBLICATION-MATHEMATICAL INDUCTION AND SUMMATION OF SERIES-Question Bank
  1. The sum of first 9 terms of the series : ( 1^(3))/( 1) + ( 1^(3) + 2...

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  2. (1)/(1 . 4)+(1)/(4 . 7)+(1)/(7 . 10)+.. .. .. ..=

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  3. 1+(3)/(2)+(5)/(2^(2))+(7)/(2^(3))+.. .. to infty=

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  4. Sum to n terms of the series3+15+35+63+.. ..

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  5. (1)/(2 !)+(2)/(3 !)+(3)/(4 !)+.. .. to n terms =

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  6. Sum of 10 terms of the series (3)/(1^(2))+(5)/(1^(2)+2^(2))+(7)/(1+2...

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  7. If the sum of n terms of the series : (1)/( 1^(3)) +( 1+2)/( 1^(3) +...

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  8. Sum of 25 terms of the series 1 . 3+2 . 5+3 . 7+.., is

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  9. If the natural numbers are divided into the groups (1),(2,3),(4,5,6),(...

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  10. If (sum n^(3))(sum n)=(sum n^(2))^(2), then

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  11. 4^(3)+5^(3)+6^(3)+.. .+10^(3)=

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  12. 3+5+7+ …..to n^(th) term is

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  13. ((1)/(2) . (2)/(2))/(1^(3))+((2)/(3) . (3)/(2))/(1^(3)+2^(3)) +((3)/(2...

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  14. The 10^(th ) term of the series 3+13+29+51+79+.. ..

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  15. Sum to 30 terms of 3+4+8+9+13+14+18+19+.. is

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  16. The greatest positive integer, which divides (n+1)(n+2)(n+3)(n+4) for ...

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  17. The sum of cubes of three successive natural numbers is divisible by

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  18. Product of 4 consecutive natural numbers is divisible by

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  19. 49^(n)+16 n-1 is divisible by

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  20. If n is a positive integer, then n^(3)+2n is divisible

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