Question

Ajudaaaaaaaaaaaaaa please!​

Answer 1

Explicação passo-a-passo:

$\frac{10!}{3!7!} = \frac{10*9*8*7!}{3!7!} = \frac{10*9*8}{3!} = \frac{10*9*8}{3*2*1}\\\\\frac{10*9*8}{3*2*1} = 5*3*8 = \fbox{120}$