1.

C_0 + (C_1)/(2) (4) + (C_2)/(3) (16) + …………..+(C_n)/(n + 1) (2^(2n))

Answer»

`(5^(N+1) + 1)/(n-1)`
`(5^(n+1) - 1)/(4(n+ 1))`
`(5^(n+1) + 1)/(4(n + 1))`
`(5^(n+1) + 1)/(4(n -1))`

Answer :B


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