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Druhá odmocnina I

Authored by Vladimír Mikulík

Mathematics

9th Grade

Used 22+ times

Druhá odmocnina I
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15 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 25\sqrt{-25}  

5

-5

neexistuje

0

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 3600=\sqrt{3600}=  

jiná možnost

 6060  

 600600  

 60006000  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 0,000 049=\sqrt{0,000\ 049}=  

 0,000 070,000\ 07  

 0,000 0070,000\ 007  

 0,000 70,000\ 7  

 0,0070,007  

jiná možnost

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2,25=\sqrt{2,25}=  

 0,150,15  

jiná možnost

 0,001 50,001\ 5  

 0,0150,015  

 1,51,5  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (5)2\sqrt{\left(-5\right)^2}  

25

nelze odmocnit záporné číslo

5

-5

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Vyberte platné (splněné) rovnosti (může jich být více).

12=23\sqrt{12}=2\cdot\sqrt{3}

15=35\sqrt{15}=3\cdot\sqrt{5}

50=52\sqrt{50}=5\cdot\sqrt{2}

27=33\sqrt{27}=3\cdot\sqrt{3}

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Vyberte platné (splněné) rovnosti (může jich být více).

4981=79\sqrt{\frac{49}{81}}=\frac{7}{9}

 753=25\frac{\sqrt{75}}{\sqrt{3}}=25  

 94=32\frac{\sqrt{9}}{\sqrt{4}}=\sqrt{\frac{3}{2}}  

 2200=110\frac{\sqrt{2}}{\sqrt{200}}=\frac{1}{10}  

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