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C1 + 4.C2 +7.C3 +…….+(3n-2).Cn=...

`C_1 + 4.C_2 +7.C_3 +…….+(3n-2).C_n= `

A

`(3n-4)2^(n+1)`

B

`(3n-2) 2^(n-1)+2`

C

`(3n-4) 2^n`

D

`(3n -4 ) 2^(2n -1) + 1`

Text Solution

Verified by Experts

The correct Answer is:
B
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