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Kvadratne nejednadžbe

Authored by Ena Pamukovic

Mathematics

10th Grade

Used 1+ times

Kvadratne nejednadžbe
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5 questions

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1.

MULTIPLE SELECT QUESTION

15 mins • 1 pt

Označite sve kvadratne nejednadžbe:

12x+11x2>2\frac{1}{2}x+11x^2>2

3x+2x0\sqrt{3}x+2x\le0

x2+2x+3=0x^2+2x+3=0

12x2+12<0\sqrt{\frac{1}{2}}x^2+12<0

0x2+3x+400\cdot x^2+3\cdot x+4\ge0

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Odredite rješenje nejednadžbe:
 x24x^2\le4  



 x[2,2]x\in\left[-2,2\right]  

 x<,2><2,+>x\in<-\infty,-2>\cup<2,+\infty>  

nema rješenja

 x2x\le2  

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Ako je diskriminanta D jednaka 0, tada kvadratna jednadžba:

nema realnih rješenja

ima jedno realno rješenje

ima dva realna rješenja

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Odredite rješenje nejednadžbe:


 x24x+40x^2-4x+4\le0  

nema rješenja

 xRx\in R  

 x=2x=2  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Odredite rješenje nejednadžbe:

 x2+x+1>0x^2+x+1>0  


nema rješenja

 xRx\in R  

 x=2x=2  

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