COMEDK Exam 2018 Solved Paper

© examsiri.com

Question : 134 of 180

Marks: +1, -0

If x occurs is the expansion of (x+‌

1

x

)n, then its coefficient is

‌
n!
(r!)1
‌
n!
(r+1)!(r−1)!
‌
n!
(‌
n+r
2
)!(‌
n−r
2
)!
‌
n!
[(‌
n
2
)!]2

Go to Question:

Prev Question

Next Question