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Question Number 148284 by 0731619 last updated on 26/Jul/21

Answered by Olaf_Thorendsen last updated on 26/Jul/21

$$6!!=6\times 4\times 2=48$$$$8!!!!!=8\times 3=24$$$$9!!!!=9\times 5\times 1=45$$$$!4=4!(\frac{1}{0!}-\frac{1}{1!}+\frac{1}{2!}-\frac{1}{3!}+\frac{1}{4!})=9$$$$!5=5!(\frac{1}{0!}-\frac{1}{1!}+\frac{1}{2!}-\frac{1}{3!}-+\frac{1}{4!}-\frac{1}{5!})=44$$$$x=!5\times \frac{\sqrt{!4+8!!!!!+6!!-16}}{9!!!!}$$$$x=44\times \frac{\sqrt{9+24+48-16}}{45}=\frac{44}{9}\sqrt{\frac{13}{5}}$$

Commented by Sozan last updated on 26/Jul/21

$$msrolafcanyougivemenamebook$$$$containdthisfactorial$$

Commented by Olaf_Thorendsen last updated on 26/Jul/21

$$\mathrm{Unfortunately}\mathrm{not}\mathrm{sir}.$$$$\mathrm{I}\mathrm{am}\mathrm{not}\mathrm{a}\mathrm{mathematician}.$$$$\mathrm{I}\mathrm{use}\mathrm{my}\mathrm{phone},\mathrm{google}\mathrm{and}\mathrm{wikipedia}.$$

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