Question

a) calcule:
12!+10!/11!

Answer 1

$\frac{12!+10!}{11!} = \frac{12!}{11!} + \frac{10!}{11!} \\ \\ \frac{12.11!}{11!} + \frac{10!}{11.10!} = 12+ \frac{1}{11} = \frac{12.11+1}{11} = \frac{133}{11}$

Espero ter ajudado.