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sum(r = 0)^(n-1) (Cr)/(Cr + C(r+1)) =...

`sum_(r = 0)^(n-1) (C_r)/(C_r + C_(r+1)) = `

A

`n/2`

B

`n/3`

C

`n/4`

D

`(2n)/(3)`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-BINOMIAL THEOREM-EXERCISE - II
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