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5!-4![tex] \frac{x}{y} [/tex]2!

Răspuns :

Presupunand ca te refereai la [tex]5!- \frac{4!}{2!} [/tex], poti face inlocuirile direct, sau simplifica:

[tex]5!- \frac{4!}{2!}=1*2*3*4*5- \frac{1*2*3*4}{1*2}=120-12=108 [/tex]