Question

Calculate the coefficient of x^14 y^4 in the expansion of (x + y)^18.

Answer 1

A. 3,060

Answer 2

B. 3,600

Answer 3

C. 1,001

Answer 4

D. 1,008

Answer 5

@ganeshie8

Answer 6

I think C.

Answer 7

do uuuu no?

Answer 8

(x+y)^18

solution:

k x^(n-m) * y^m
n = 18, m = 4

[ n! / (n-m)!*m! ] * (x^14)(y^4)

[ 18! / (14)!*4! ] * (x^14)(y^4)

https://answers.yahoo.com/question/index?qid=20120419220121AAuzCTI

Answer 9

go to other question