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Kvadrātnevienādība

Authored by Ligita Arāja

Mathematics

9th Grade

Used 21+ times

Kvadrātnevienādība
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9 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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 x23x4<0x^2-3x-4<0  nevienādības atrisinājums ir...

 (1;4)\left(-1;4\right)  

 (;1)(4;)\left(-\infty;-1\right)\cup\left(4;\infty\right)  

[-1;4]

 (;1][4;+)\left(-\infty;-1\right]\cup\left[4;+\infty\right)  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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Nevienādības x2-4x-5>0 atrisinājums ir ...

(;5)(1;+)\left(-\infty;-5\right)\cup\left(1;+\infty\right)

[-5;1]

(-5;1)

(;5][1;+)\left(-\infty;-5\right]\cup\left[1;+\infty\right)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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 x2+2x0-x^2+2x\ge0  Atrisinājums ir 

Tukša kopa

 (;)\left(-\infty;\infty\right)  

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

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x2+6x+2>0 atrisinājums ir

xRx\in R

Visi skaitļi

(;+)\left(-\infty;+\infty\right)

Tukša kopa

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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 x22x80x^2-2x-8\ge0  atrisinājums ir ...

 (;2)(4;+)\left(-\infty;-2\right)\cup\left(4;+\infty\right)  

 [-2;4]

 (;2][4;+)\left(-\infty;-2\right]\cup\left[4;+\infty\right)  

(-2;4)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Grafiks x asi krusto punktos -1 un 3 nosaki nevienādības

 x2+2x+30-x^2+2x+3\ge0  atrisinājumu.

[-1;3]

(-1;3)

 (;1)(3+)\left(-\infty;-1\right)\cup\left(3+\infty\right)  

 (;1][3+)\left(-\infty;-1\right]\cup\left[3+\infty\right)  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kurš attēls atbilst?

 x22x0 -x^2-2x\ge0\   nevienādības atrisinājums ir [0;2]

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