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Question-114660




Question Number 114660 by mohammad17 last updated on 20/Sep/20
Commented by mohammad17 last updated on 20/Sep/20
help me sir
$${help}\:{me}\:{sir} \\ $$
Answered by bobhans last updated on 20/Sep/20
((9!)/(4!.2!)) = ((9.8.7.6.5)/2) = 36×210=7560
$$\frac{\mathrm{9}!}{\mathrm{4}!.\mathrm{2}!}\:=\:\frac{\mathrm{9}.\mathrm{8}.\mathrm{7}.\mathrm{6}.\mathrm{5}}{\mathrm{2}}\:=\:\mathrm{36}×\mathrm{210}=\mathrm{7560} \\ $$

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