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Irysbm14
@Irysbm14
December 2019
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(IFES-2013) Existem dois números reais que são raízes da equação x²-12x+32=0. O quociente entre o menor e o maior vale:
a) 2
b) 4
c) 1/3
d) 3/8
e) 0
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marimc1
Delta = (-12)² - 4.1.32
delta = 144 - 128 = 16
x = -(-12) +- √16/2
x = 12 +- 4/2
x1 = 8
x2 = 4
4/8 = 1/2
1 votes
Thanks 1
exalunosp
X² - 12x + 32 = 0
delta = 144 - 128 = 16 ou +-V16 = +-4 ****
x = ( 12 +-4)/2
x1 = 16/2 = 8 ****
x2 = 8/2 = 4***
4/8 = 1/2 **** ( quociente entre o menor e o maior ) ( a )
8/4 = 2 ***** ( idem entre o maior e o menor )
0 votes
Thanks 1
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Lista de comentários
delta = 144 - 128 = 16
x = -(-12) +- √16/2
x = 12 +- 4/2
x1 = 8
x2 = 4
4/8 = 1/2
delta = 144 - 128 = 16 ou +-V16 = +-4 ****
x = ( 12 +-4)/2
x1 = 16/2 = 8 ****
x2 = 8/2 = 4***
4/8 = 1/2 **** ( quociente entre o menor e o maior ) ( a )
8/4 = 2 ***** ( idem entre o maior e o menor )