Question

if 10Cx =1 ,then what is the value of x if x!=0

Answer 1

Answer:

Step-by-step explanation:

The value of x is 1 by 10

Answer 2

Answer:

x=10

Step-by-step explanation:

Given :$^{10}C_x=1$

To Find : value of x

Solution :

$^{10}C_x=1$

Formula :$^nC_r=\frac{n!}{r!(n-r)!}$

$^{10}C_{x}=\frac{10!}{x!(10-x)!}=1$

We are given that x! is 0!

So, $\frac{10!}{x!(10-x)!}=1$

x= 10

Substitute x = 10 to verify

So, $\frac{10!}{10!(10-10)!}=1$

$\frac{10!}{10!(0)!}=1$

$1=1$

So, x = 10

Hence the value of x is 10