Question

Fatorial $\frac{1}{2}. 5! - \frac{3}{4}. 3!$
por favor!

Answer 1

Olá!
 
    $5!=5\cdot 4\cdot 3\cdot 2\cdot 1=120$   e $3!=3\cdot 2\cdot 1=6.$   Logo,


$\dfrac{1}{2}\cdot 5!-\dfrac{3}{4}\cdot 3!=\dfrac{120}{2}-\dfrac{3\cdot 6}{4}= \dfrac{240-18}{4}=\dfrac{222}{4}=\dfrac{111}{2}.$




Bons estudos!