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Algebriskie vienādojumi.

Authored by Daina Brinke

Mathematics

10th Grade

Used 11+ times

Algebriskie vienādojumi.
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vienādojuma

 3x27x+2=03x^2-7x+2=0  sakņu reizinājums ir

2

 23\frac{2}{3}  

 2-2  

7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vienādojumam ax+b=0 atkarībā no a un b vērtībām nevar būt

viena sakne

neviena sakne

divas saknes

bezgalīgi daudz sakņu

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Ja

 (5x1)2=2\left(5x-1\right)^2=-2  , tad vienādojuma saknes ir

 25;45-\frac{2}{5};\frac{4}{5}  

 45\frac{4}{5}  

 ϕ\phi  

 RR  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Vienādojumā

 x1x3x2x2+52=0\frac{x-1}{x}-\frac{3x}{2x-2}+\frac{5}{2}=0  izmantojot substitūciju  x1x=t, \frac{x-1}{x}=t,\   , iegūst

 t3t2+52=0t-\frac{3t}{2}+\frac{5}{2}=0  

 t32t+52=0t-\frac{3}{2t}+\frac{5}{2}=0  

 t3t+52=0t-\frac{3}{t}+\frac{5}{2}=0  

 t23t+52=0t-\frac{2}{3t}+\frac{5}{2}=0  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vienādojuma

 x39x=0x^3-9x=0  mazākā sakne ir

 3-3  

0

3

 9-9  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vienādojuma

 x+2=4\left|x+2\right|=4  saknes ir

2

4 un 2

2 un  6-6  

 2-2  un 6

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Vienādojuma

 4+x+3=14+\left|x+3\right|=1  saknes ir 

3

3 un  3-3  

0 un 3

 ϕ\phi  

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