Simplify: 10!/[4!*(10-4)!)]

1 answer:

3 0

$\bf \cfrac{10!}{4!(10-4)!}\implies \cfrac{10!}{4!(6)!}\implies \cfrac{10\cdot 9\cdot 8\cdot 7\cdot \underline{6!}}{4!\underline{6!}}\implies \cfrac{10\cdot 9\cdot 8\cdot 7}{4!} \\\\\\ \cfrac{5040}{24}\implies 210$

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