The coefficient of x^ky^n-k in the expansion of

Ответ:

Okeh4001

15.03.2022

The given statement is false.

Step-by-step explanation:

Given : The coefficient of $x^k y^{n-k}$ in the expansion of (x+y)^n equals $\frac{n-k}{k}$ .

To find : True or False

Solution : The given statement is not true .

Because, when we do expansion of (x+y)^n by binomial theorem we get,

$(x+y)^n= ^{n}C_k x^k y^{n-k}$

Therefore, coefficient of $x^k y^{n-k}$ is $^{n}C_k=\frac{n!}{(n-k)!k!}$

The given statement is false.

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valenzueladomipay09u

29.07.2022

set of letters of word BOOK is

$\{ B,O,K\}$

mark brainliest please

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