Question Number 172468 by mathlove last updated on 27/Jun/22
Commented by mokys last updated on 28/Jun/22
$$=\:\frac{\left(\mathrm{3}!!\right)^{\mathrm{3}!!} \:−\:\left(\mathrm{3}^{\mathrm{3}!!} \right)}{\mathrm{3}^{\mathrm{3}!} \:−\:\mathrm{3}^{\mathrm{6}!!} }\:=\:\frac{\mathrm{3}^{\mathrm{3}} \:−\:\mathrm{3}^{\mathrm{3}} }{\mathrm{3}^{\mathrm{3}!} \:−\:\mathrm{3}^{\mathrm{6}!!} }\:=\:\mathrm{0} \\ $$