Question

determine a raiz em U=R de:
(x-1)^2 = 1

Answer 1

Oie, Td Bom?!

$(x - 1) {}^{2} = 1$

$x - 1 = ± \sqrt{1}$

$x - 1 = ±1$

• $x - 1 = - 1⇒x = - 1 + 1⇒x = 0$

• $x - 1 = 1⇒x = 1 + 1⇒x = 2$

$S = \left \{0 \: ,\: 2 \right \}$

Att. Makaveli1996