1.

2. C_0+ 2^2 (C_1)/(2)+2^3. (C_2)/(3)+…....+2^(n+1). (C_n)/(n+1)=

Answer»

`(1)/(n+1)`
`(4^n)/(n+1)`
`(3^(n+1)-1)/(n+1)`
`(4^(n+1)-1)/(n+1)`

ANSWER :C


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