Question

1/3 *(n+3)!/(n+3)=10
Ayudaa ×fis​

Answer 1

Explicación paso a paso:

$\frac{1}{3}\cdot \frac{\left(n+3\right)!}{\left(n+1\right)!}=10\\\\\\\frac{1}{3}\left(n+3\right)\left(n+2\right)=10\\\\\\\frac{1}{3}\left(n+3\right)\left(n+2\right)\cdot \:3=10\cdot \:3\\\\\\\left(n+3\right)\left(n+2\right)=30\\\\\\n=3\\\\\\NOSENADAOFICIAL\:\:\:\:\:\: :V$