Intervalos Números Reais

Intervalos Números Reais

9th Grade

12 Qs

quiz-placeholder

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Intervalos Números Reais

Intervalos Números Reais

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

Arlinda Oliveira

Used 237+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Como representas  A={xR: x>5} \ A=\left\{x\in R:\ x>5\right\}\   na forma de intervalo?

]- \infty  , 5[

]- \infty  , 5]

[5,+ \infty  [

]5,+ \infty  [

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Como representas  B={xR: 2x<6} \ B=\left\{x\in R:\ 2\le x<6\right\}\   
  na forma de intervalo?

[2,6[

[2,6]

]2,6[

]2,6]

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Como é que se representa o intervalo [4, +  \infty  [ em compreensão?

 {xR: x>4}\left\{x\in R:\ x>4\right\}  

 {xR: x4}\left\{x\in R:\ x\ge4\right\}  

 {xR: x<4}\left\{x\in R:\ x<4\right\}  

 {xR: x4}\left\{x\in R:\ x\le4\right\}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Na seguinte imagem está representado um certo de subconjunto D de números Reais. Como se representa na forma de intervalo?

[-1,3]

]-1,3]

[-1,3[

]-1,3[

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Como se representa por uma condição o conjunto representado na seguinte imagem?

{xR: x<1}\left\{x\in R:\ x<-1\right\}

{xR: x1}\left\{x\in R:\ x\ge-1\right\}

{xR: x>1}\left\{x\in R:\ x>-1\right\}

{xR: x1}\left\{x\in R:\ x\le-1\right\}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual é o menor número inteiro que pertence ao intervalo ] 5;0-\sqrt{5};0 [ ?

-3

-2

-1

0

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

O número 2 pertence a quais dos seguintes intervalos?


 [11, 6]\left[\sqrt{11},\ 6\right] 

] 2, 4]

 [1,3]\left[1,3\right] 

 [3,20]\left[-3,20\right] 

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