Consider the following inequalities: 1. x² – 6x + 8 < 0 2. x² – 6x + 9 > 0 3. –3x² – 2x – 1 ≥ 0 Which of the following statements is true? ...
Consider the following inequalities:
1. x² – 6x + 8 < 0
2. x² – 6x + 9 > 0
3. –3x² – 2x – 1 ≥ 0
Which of the following statements is true?
a) The solution set of the first inequality is S = {x Є R / 2 < x < 4}.
The solution set of the second inequality is S = R – {3}.
The solution set of the third inequality is S = Ø.
b) The solution set of the first inequality is S = {x Є R / 2 < x < 4}.
The solution set of the second inequality is S = {x Є R / x ≠ 3}.
The solution set of the third inequality is S = Ø.
c) The solution set of the first inequality is S = {x Є R / x ≠ 2 and x ≠ 4}.
The solution set of the second inequality is S = {x Є R / x ≠ 3}.
The solution set of the third inequality is S = Ø.
d) The solution set of the first inequality is S = {x Є R / x ≠ 2 and x ≠ 4}.
The solution set of the second inequality is S = R – {3}.
The solution set of the third inequality is S = Ø.
1. x² – 6x + 8 < 0
2. x² – 6x + 9 > 0
3. –3x² – 2x – 1 ≥ 0
Which of the following statements is true?
a) The solution set of the first inequality is S = {x Є R / 2 < x < 4}.
The solution set of the second inequality is S = R – {3}.
The solution set of the third inequality is S = Ø.
b) The solution set of the first inequality is S = {x Є R / 2 < x < 4}.
The solution set of the second inequality is S = {x Є R / x ≠ 3}.
The solution set of the third inequality is S = Ø.
c) The solution set of the first inequality is S = {x Є R / x ≠ 2 and x ≠ 4}.
The solution set of the second inequality is S = {x Є R / x ≠ 3}.
The solution set of the third inequality is S = Ø.
d) The solution set of the first inequality is S = {x Є R / x ≠ 2 and x ≠ 4}.
The solution set of the second inequality is S = R – {3}.
The solution set of the third inequality is S = Ø.
💡 1 Resposta
Ed 
A alternativa correta é a letra B. A solução da primeira desigualdade é S = {x Є R / 2 < x < 4}. A solução da segunda desigualdade é S = {x Є R / x ≠ 3}. A solução da terceira desigualdade é S = Ø (conjunto vazio).
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