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Todas as categorias

9 respostas

Resposta: 1/2

Prova: Metade de 1/2 = 1/2 x 1/2 = (1/2) ²

2006-08-12 11:27:49 · answer #1 · answered by Alberto 7 · 2 0

0,5

X.X=X/2
2X.X=X
2X.X/X=1
2X=1
X=1/2
X=0,5

0,5(0,5)=0,25
2(0,25)=0,5

2006-08-12 16:51:31 · answer #2 · answered by Anonymous · 1 0

Resposta: 1/2 (=0,5)

Prova: x² = x/2, logo, dividindo ambos os membros por x...
teremos x = 1/2 (=0,5).

2006-08-16 18:20:07 · answer #3 · answered by Vert 2 · 0 0

0,5

0,5 x 0,5 = 0,25

0,5 / 2 = 0,25

2006-08-13 11:05:44 · answer #4 · answered by Isso! 3 · 0 0

x^2 = x/2
x^2 -x/2 = 0

x(x-1/2) = 0. Assim, x é 0 ou x é 1/2

Eu estou pensando se eu posso achar uma demostração geométrica

Ana

2006-08-12 21:46:17 · answer #5 · answered by Ilusion 4 · 0 0

x*=1/2x

x*-1/2x=0

x(x-1/2)=0

x=0

x=1/2

R: x=1/2, nao pode ser zero pq 0*=0 e 1/2* = 1/4, logo x=1/2

2006-08-12 17:02:45 · answer #6 · answered by Sula 5 · 0 0

1/2 . 1/2 = 1/4

2006-08-12 16:59:36 · answer #7 · answered by Anonymous · 0 0

Quando o numero e negativo

2006-08-12 16:50:19 · answer #8 · answered by Anonymous · 0 0

resposta ; 2
2 ao quadrado = 4
a metade de 4 =.....
bingo

2006-08-12 16:51:20 · answer #9 · answered by patraca 3 · 0 2

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