Prova di Matematica 18-1-2021 (radicali - retta)

Prova di Matematica 18-1-2021 (radicali - retta)

11th Grade

10 Qs

quiz-placeholder

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Prova di Matematica 18-1-2021 (radicali - retta)

Prova di Matematica 18-1-2021 (radicali - retta)

Assessment

Quiz

Mathematics

11th Grade

Medium

Created by

Simonetta Selvaggio

Used 3+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Razionalizza il denominatore della seguente frazione

 4x2x\frac{4x}{\sqrt{2x}}  

2x

 22xx\frac{2\sqrt{2x}}{x}  

 22x2\sqrt{2x}  

 2x4\frac{\sqrt{2x}}{4}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 x4x2\frac{x-4}{\sqrt{x}-2}  Razionalizza il denominatore della seguente frazione

 x2\sqrt{x}-2  

 x+2x\frac{\sqrt{x}+2}{x}  

x-2

 x+2\sqrt{x}+2  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Razionalizza il denominatore della seguente frazione


 aba3b\frac{ab}{\sqrt{a^3b}}  

 baba\frac{b\sqrt{ab}}{a}  

 aba\frac{\sqrt{ab}}{a}  

 ab\sqrt{ab}  

 aabb\frac{a\sqrt{ab}}{b}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Razionalizza il denominatore della seguente frazione

 x49x+7\frac{x-49}{\sqrt{x}+7}  

 x7\sqrt{x}-7  

 x+7\sqrt{x}+7  

x-7

x+7

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Semplifica il seguente radicale

 81a4c2b6\sqrt{\frac{81a^4}{c^2b^6}}  

 9a4c2b6\frac{9a^4}{c^2b^6}  

 9a2c2b6\frac{9a^2}{c^2b^6}  

 9a2c2b3\frac{9a^2}{c^2b^3}  

 9a2cb3\frac{9a^2}{cb^3}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Razionalizza il denominatore della seguente frazione

 55\frac{5}{\sqrt{5}}  

1

 5\sqrt{5}  

0

 55\frac{\sqrt{5}}{5}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Calcola il valore della seguente espressione
 1+aa2a2+1+2a2:4a2\sqrt{\frac{1+a}{a^2}}\cdot\sqrt{\frac{a^2+1+2a}{2}}:\sqrt{\frac{4}{a^2}}  

 (a+1)24\sqrt{\frac{\left(a+1\right)^2}{4}}  

 (a+1)38\sqrt{\frac{\left(a+1\right)^3}{8}}  

 a+18\sqrt{\frac{a+1}{8}}  

 a+14\sqrt{\frac{a+1}{4}}  

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