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Find the sum of the first 20 terms of th...

Find the sum of the first 20 terms of the sequence shown below:
`(1)/(1(1+1))+(1)/(2(2+1))+(1)/(3(3+1))+(1)/(4(4+1))+...+(1)/(20(20+1))`

A

`(1)/(2)`

B

`(3)/(4)`

C

`(9)/(10)`

D

`(20)/(21)`

Text Solution

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The correct Answer is:
D
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