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Frazioni algebriche

Authored by Silvia Formaggia

Mathematics

9th Grade

Used 42+ times

Frazioni algebriche
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24 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Quale delle seguenti frazioni è irriducibile?

a+ba2b2\frac{a+b}{a^2-b^2}

a2b2ab\frac{a^2-b^2}{a-b}

a2+b2ab\frac{a^2+b^2}{a-b}

a2+aba2b2\frac{a^2+ab}{a^2-b^2}

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 zxzy=zxy\frac{z}{x}-\frac{z}{y}=\frac{z}{x-y}  

Vero 

Falso

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Vero

Falso

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Quali sono le C.E della frazione  3xx29\frac{3x}{x^2-9}  ?

 x±3x\ne\pm3  

 xox\ne o  

 x3x\ne3  

Tutto R

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La semplificazione della frazione algebrica  6a3a2b3a2      con a0\frac{6a-3a^2b}{3a^2}\ \ \ \ \ \ con\ a\ne0  è:

 6ab6a-b  

 2a3b3a\frac{2a-3b}{3a}  

 2ab3\frac{2-ab}{3}  

 2aba\frac{2-ab}{a}  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

nessuna delle altre è corretta

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

0

nessuna delle precedenti

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