Operaciones con números reales

Operaciones con números reales

12th Grade

12 Qs

quiz-placeholder

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Operaciones con números reales

Operaciones con números reales

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

Created by

José Quintanilla

Used 10+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El conjugado de

 4+8-\sqrt{4}+8  es

 48-\sqrt{4}-8  

 4+8\sqrt{4}+8  

 48\sqrt{4}-8  

 4+8-\sqrt{4}+8  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El conjugado de

 7+10\sqrt{7}+\sqrt{10}  es

 710\sqrt{7}-\sqrt{10}  

 710-\sqrt{7}-\sqrt{10}  

 7+10-\sqrt{7}+\sqrt{10}  

 7+10\sqrt{7}+\sqrt{10}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El valor absoluto de un numero no siempre es positivo

Verdadero

Falso

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Al efectuar

 49÷81\sqrt{49}\div\sqrt{81}  se obtiene un numero racional

Verdadero

Falso

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Al efectuar

 3÷27\sqrt{3}\div\sqrt{27}  se obtienen un numero racional

Verdadero

Falso

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Encuentre el valor absoluto de

 532\sqrt{5}-3\sqrt{2}  

 532\sqrt{5}-3\sqrt{2}  

 3253\sqrt{2}-\sqrt{5}  

0.21

-0.21

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

¿Qué valores puede tomar x para que se cumpla la igualdad ?

 3x=1\left|3-x\right|=1  

x=3 y x=1

x=3 y x=2

x=2 y x=4

x=1 y x=-2

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