Rapoarte de nr. reale reprezentate prin litere (1)

Rapoarte de nr. reale reprezentate prin litere (1)

7th Grade

10 Qs

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Rapoarte de nr. reale reprezentate prin litere (1)

Rapoarte de nr. reale reprezentate prin litere (1)

Assessment

Quiz

Mathematics

7th Grade

Medium

Created by

Boldea Daniela

Used 9+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Valoarea raportului  x71+x+x2\frac{x-7}{1+x+x^2}  pentru x=7 este

0

57

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Valoarea raportului x+yx2+y2+1\frac{x+y}{x^2+y^2+1}  pentru x=0  şi  y=1 este....

1

 12\frac{1}{2}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Valorile reale ale lui x pentru care raportul  5x21\frac{5}{x^2-1}  nu este definit sunt...


x=-1  şi  x=1

x=1

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Simplificând raportul  x2+2xx2+4x+4\frac{x^2+2x}{x^2+4x+4}    cu x+2 obținem...

 xx+2\frac{x}{x+2}  

 x4\frac{x}{4}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

După simplificare , raportul x2+2xx24\frac{x^2+2x}{x^2-4}  devine....

 2x4-\frac{2x}{4}  

 xx2\frac{x}{x-2}  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Simplificând fracţia, obținem:

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Media Image
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7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Simplificând fracţia, obținem:

Media Image
Media Image
Media Image
Media Image

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