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Find the value of 1/(2xx3)+1/(3xx4)+1...

Find the value of `1/(2xx3)+1/(3xx4)+1/(4xx5)+1/(5xx6)+\ ddot+1/(9xx10)` .

A

`3/2`

B

`2/5`

C

`2/3`

D

`3/5`

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The correct Answer is:
B
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