Question

como resolver isto -0,999...

Answer 1

Sabemos por inumeras provas que 0.999...=1

Entao
-0.999...=-1

Prova:

$\frac13=0.333...\\\\3\times\frac13=3\times0.333...\\\\\frac33=0.999...\\\\1=0.999...$

Answer 2

     - 0,999... = - 9/9 = -1