1.

Coefficient of x^3y^4z^2 in (2x-3y+4z)^9 is

Answer»

`(9!)/(4!4!)2^(3)3^(4)4^2`
`(-9!)/(3!2!4!)2^(3)3^(4)4^2`
`(9!)/(4!4!) 2^(3)3^(4)4^2`
`(9!)/(3!4!2!)2^(3)3^(4)4^2`

ANSWER :D


Discussion

No Comment Found

Related InterviewSolutions