Raționalizarea numitorilor

Raționalizarea numitorilor

7th Grade

12 Qs

quiz-placeholder

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Raționalizarea numitorilor

Raționalizarea numitorilor

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

DARIA-IOANA MATES

Used 14+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După raționalizare,

 25=\frac{2}{\sqrt{5}}=  

 252\sqrt{5}  

 25\frac{2}{5}  

 255\frac{2\sqrt{5}}{5}  

 1010  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După raționalizare,

 13=\frac{1}{\sqrt{3}}=  

 33\frac{3}{\sqrt{3}}  

 33\frac{\sqrt{3}}{3}  

 33  

 31\frac{3}{\sqrt{1}}  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După raționalizare și simplificare,

 105=\frac{10}{\sqrt{5}}=  

 1055\frac{10\sqrt{5}}{\sqrt{5}}  

 22  

 252\sqrt{5}  

 50\sqrt{50}  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După raționalizare,

 35=\frac{-3}{\sqrt{5}}=  

 355\frac{-3\sqrt{5}}{\sqrt{5}}  

 355\frac{3\sqrt{5}}{5}  

 35\frac{-3}{5}  

 355\frac{-3\sqrt{5}}{5}  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După raționalizare și simplificare,

 147=\frac{14}{-\sqrt{7}}=  

 27-2\sqrt{7}  

 147-14\sqrt{7}  

 272\sqrt{7}  

 14714\sqrt{7}  

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

După raționalizare,

 217=-\frac{21}{\sqrt{7}}=  

 27-2\sqrt{7}  

 37-3\sqrt{7}  

 373\sqrt{7}  

 217-21\sqrt{7}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Stabiliți valoarea de adevăr a propoziției

 322=322\frac{3}{2\sqrt{2}}=\frac{3\sqrt{2}}{2}  

Adevărat

Fals

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