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If Ck is the coefficient of x^k in the e...

If `C_k` is the coefficient of `x^k` in the expansion of `(1 + x)^2005` and if a,d are real numbers then `sum_(k = 0)^(2005) (a + kd).C_k` =

A

`(2a+2005 d)2^(2004)`

B

`(2a + 2005d) 2^(2005)`

C

`(2a+2004d) 2^(2005)`

D

`(2a+2004) 2^(2005)`

Text Solution

Verified by Experts

The correct Answer is:
A
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