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DavidZombotroll
a fost răspuns

5!/(5-2!)2!

4!/4-2!

va rog rapid

Răspuns :

Alexandravert

5! (factorial)=1*2*3*4*5=120

(5-2)!=3!=1*2*3=6

2!=1*2=2

5!/(5-2!)*2!=120/(5-2)*2=120/3*2=120/6=20

4!=1*2*3*4=24

4!/4-2!=24/4-2=6-2=4

4!/(4-2)!=24/2=12

5!/(5 - 2!)·2! = 5!/(5 - 2)·2! = 5!/3·2 = 120/6 = 20

4!/(4 - 2!) = 4!/(4 - 2) = 4!/2 = 24/2 = 12

4!/4 - 2! = 24/4 - 2 = 6 - 2 = 4

AM facut ambele variante

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