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FInd the sum of infinite terms of the se...

FInd the sum of infinite terms of the series `1/(1.2.3)+1/(2.3.4)+1/(3.4.5).....`

A

`(116)/(465)`

B

`(495)/(1984)`

C

`(435)/(791)`

D

`(485)/(791)`

Text Solution

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The correct Answer is:
B
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MCGROW HILL PUBLICATION-PROGRESSIONS-EXERCISES LEVEL-1 (Single Correct Answer Type Questions)
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  10. Find the sum to n terms of the series 1 + (1 + 2) + (1 + 2 + 3) + .......

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  12. If the sum of an infinite decreasing G.P. is 3 and sum of the cubes of...

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  13. The sum of the series S= overset(n)underset(r=1)Sigma log ((a^(r+1))/(...

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  19. If a(r)=a+(r-1)d is rth term of an A.P., then a(n)^(2)-2a(n-1)^(2)+a(n...

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