Question

exemplifique 7!/5! + 6!/7!

Answer 1

$\frac{7!}{5!}+\frac{6!}{7!}$

$\frac{7.6.5!}{5!}+\frac{6!}{7.6!}$

$7.6 + \frac{1}{7}$

$42 + \frac{1}{7}$

$\frac{295}{7}$

Answer 2

$x= \dfrac{7!}{5!} + \dfrac{6!}{7!} \\ \\ \\ x = \dfrac{7 . 6 , \not 5!}{\not 5!} + \dfrac{\not 6!}{7, \not 6!} \\ \\ \\ x = 7 . 6 + \dfrac{1}{7} \\ \\ \\ x = 42 + \dfrac{1}{7} \\ \\ \\ => x = \dfrac{295}{7}$