
INTERVALOS REAIS
Authored by vania silva
Mathematics
2nd Grade
Used 81+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Como representa A={x ∈ R: x>5} na forma de intervalo?
]∞, 5[
[5,+ ∞[
]- ∞, 5]
]5,+∞[
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2. Como representas B={x ∈ R: 2≤x<6} na forma de intervalo?
[2,6[
]2,6[
[2,6]
]2,6]
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3. O número 6 pertence a qual intervalo?
]-∞, 6[
]2,3]
]-∞ , 6]
]8,9]
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4. O intervalo ]2,4[ está contido em qual intervalo?
]-2,1[
]0,3[
]0,2[
]1,5[
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5. Como é que se representa o intervalo [4, + ∞ [ em compreensão?
{x∈R: x>4}
{x∈R: x<4}
{x∈R: x≥4}
{x∈R: x≤4}
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6. O intervalo ]4,8] é:
fechado em 4 e em 8
aberto em 4 e aberto em 8
aberto em 4 e fechado em 8
fechado em 4 e aberto em 8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7. Como representas B={x ∈ R: 2≤x<6} na forma de intervalo?
[2,6[
]2,6[
[2,6]
]2,6]
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