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12 klasė nr1

Authored by Nijolė Grigorjevienė

Mathematics

Professional Development

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12 klasė nr1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Suprastinkite reiškinį (2a2)2\sqrt{\left(2a-2\right)^2} - 32a\left|3-2a\right|  + 5, 



kai a<1

6

4a

4

-4a +10

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 3x5=\sqrt{3x-5}=  1 --x

nėra sprendinių

2; 3

2

3

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 2x+5\left|2x+5\right|\ge  1

( -2; + \infty  )

 ; 3 ir 2; +\lceil-\infty;\ -3\rceil\ ir\ \lceil-2;\ +\infty\rceil   

 ( ; 3 ir 2; + )\left(\ -\infty;\ -3\rceil\ ir\ \lceil-2;\ +\ \infty\right)  

nėra sprendinių

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jei ff  (x) ==  2x  x\sqrt{x}  , tai f išvestinė taške 4 yra lygi

8

6

0,5

4

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Apskaičiuokite (  4,2  10324,2\ \cdot\ 10^{-32}   81024\cdot8\cdot10^{24}  ):( 3 10(5)\cdot10^{\left(-5\right)}  

1,12 102\cdot10^{-2} 

1,12

0,112

1,12 103\cdot10^{-3}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Rasti  (  3163^{16}   \cdot   2242^{24}  )   18^{\frac{1}{8}}  

 656^5  

72

36

 (6)18\left(\sqrt{6}\right)^{\frac{1}{8}}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

 Rendamiesi paveikslu parabole˙s,nurodykite a,b ir c koeficientų zˇenklusRendamiesi\ paveikslu\ parabolės,nurodykite\ a,b\ ir\ c\ koeficientų\ ženklus  

a >0, b>0 ,c >0

a>0 , b<0 , c <0,

a>0, b>0, c<0

a<0, b<0 c>0,

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