Question

Efectuati (abc+bca+cab):(a+b+c)​

Answer 1

Explicație pas cu pas:

$(\overline {abc} + \overline {bca} + \overline {cab}) : (a + b + c) =$

$= (100a + 10b + c + 100b + 10c + a + 100c + 10a + b) : (a + b + c)$

$= (111a + 111b + 111c) : (a + b + c)$

$= 111(a + b + c) : (a + b + c) = \bf 111$