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Teza matematica, clasa a VII -a, sem I, 2019 - 2020

Authored by Stoian Catalin

Mathematics

7th Grade

Used 93+ times

Teza matematica, clasa a VII -a, sem I, 2019 - 2020
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Selectați un număr irațional

2

-2

2,2

2\sqrt{2}

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rezultatul calculului  1694\sqrt{\frac{169}{4}}  este:

13

2

 132\frac{13}{2}  

 134\frac{13}{4}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rezultatul calculului  5+5525+\sqrt{5\cdot\sqrt{5^2}}  este:

5

10

15

0

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rezultatul calculului  (3664)(100144)\left(\sqrt{36}-\sqrt{64}\right)\cdot\left(\sqrt{100}-\sqrt{144}\right)   este:

4

-4

1

0

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dacă scoatem factori de sub radical, atunci  147\sqrt{147}  este egal cu: 

 737\sqrt{3}  

 373\sqrt{7}  

7

3

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dacă introducem factori sub radical, atunci  929\sqrt{2}  este egal cu:

 18\sqrt{18}  

 11\sqrt{11}  

 162\sqrt{162}  

 83\sqrt{83}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pentru a compara numerele  272\sqrt{7}  și  424\sqrt{2}  trebuie folosit semnul:

 <<  

 >>  

 ==  

 \Longleftrightarrow  

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