KCET 2009 Math Solved Paper

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Question : 44 of 61

Marks: +1, -0

If f(x)=1+nx+

n(n−1)

2

x2+

n(n−1)(n−2)

6

x3+.................xn, then f"(1)=

n(n−1)2n
n(n−1)2n−1
(n−1)2n−1
n(n−1)2n−2

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