# Calculation of CN

Calculate:

$\left(\genfrac{}{}{0px}{}{789}{786}\right)-\left(\genfrac{}{}{0px}{}{789}{3}\right)$

x =  0

### Step-by-step explanation:

$\left(\genfrac{}{}{0px}{}{789}{786}\right)-\left(\genfrac{}{}{0px}{}{789}{3}\right)=\frac{789!}{786!3!}-\frac{789!}{3!786!}=0$

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