
Teste IneqPropInv 9Ano
Authored by Ricardo Paredes
Mathematics
7th Grade
Used 2+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sejam a e b números reais positivos então se a<b é equivalente a
1/a < 1/b
a+1 <b-1
-a < -b
-2a > -2b
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sejam a, b e c números reais positivos. Se a<b e b<c tem-se
ab < bc
-2a < -2c
1/a < 1/c
ab < 0 < bc
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a condição que define o intervalo de números reais [-5, 9]
-5 ≤ x< 9
-5 ≤ x ≤ 9
-5 < x < 9
-5 < x< 9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Representa sob a forma de intervalo o seguinte conjunto
D=[0, 3]
D=]0, 3]
D=[0, 3[
D=]0, 3[
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o número real que pertence simultaneamente a B e a C ?
-1
0
1
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se escreve o conjunto A na forma de intervalo de números reais?
A=[2, 100]
A=]2, +oo[
A=[2, +oo[
A=]-2, +oo[
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na reta real está representado o conjunto A.
Qual é o menor número inteiro que pertence ao conjunto A ?
1
2
3
4
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