RADICALI e CE

RADICALI e CE

2nd Grade

12 Qs

quiz-placeholder

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RADICALI e CE

RADICALI e CE

Assessment

Quiz

Mathematics

2nd Grade

Hard

Created by

Matteo Tasinato

Used 1+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calcolare il C.E. di una equazione frazionarie vuol dire:

imporre DENOMINATORE  \ne  0

imporre NUMERATORE  \ne  0

imporre NUMERATORE  ==  0

imporre DENOMINATORE  ==  0

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calcolare il L'INTERSEZIONI con l'asse X di una equazione frazionarie vuol dire, dopo aver fatto gli opportuni calcoli:

imporre DENOMINATORE  \ne  0

imporre NUMERATORE  \ne  0

imporre NUMERATORE  ==  0

imporre DENOMINATORE  ==  0

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

il C.E. della seguente equazione  (x+1)5=0\frac{\left(x+1\right)}{5}=0  è:

 ∌xR\not\ni x\in R  

 xR\forall x\in R  

C.E.   x5x\ne5  

C.E.   x0x\ne0  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual è l'intersezione con l'asse delle X della seguente equazione frazionaria  (x1)(x1)(x+1)=0\frac{\left(x-1\right)}{\left(x-1\right)\left(x+1\right)}=0  

 x=1x=-1  

 x1x\ne1  

 x=1x=1  

 ∌xR\not\ni x\in R  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual è il C.E. della seguente equazione  1x24=0\frac{1}{x^2-4}=0  

 x2x2x\ne2\cup x\ne-2  

 x=2x=2x=2\cup x=-2  

 x4x\ne4  

 x4x4x\ne4\cup x\ne-4  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Razionalizza la seguente frazione  1332\frac{1}{^3\sqrt{3^2}}  

 3333\frac{3}{^3\sqrt{3^3}}  

 1333\frac{1\cdot^3\sqrt{3}}{3}  

 33^3\sqrt{3}  

 3333\cdot^3\sqrt{3}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

il risultato della seguente operazione  (7x)(7+x)\left(\sqrt{7}-\sqrt{x}\right)\left(\sqrt{7}+\sqrt{x}\right)  è:

 7+x7+x  

 7x7x  

 7x7-x  

 7x\sqrt{7}-\sqrt{x}  

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