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Kvadratinės nelygybės 2c klasei 2022

Authored by Aiste Ignataviciene

Mathematics

9th Grade

Used 15+ times

Kvadratinės nelygybės  2c klasei 2022
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Nelygybės  x2>0x^2>0  sprendiniai yra:

visi skaičiai

 (0;)\left(0;\infty\right)  

 (;+)\left(-\infty;+\infty\right)  

 (;0);(0;+)\left(-\infty;0\right);\left(0;+\infty\right)  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nelygybės  x2<0x^2<0  sprendiniai yra:

visi skaičiai

 (;0)\left(-\infty;0\right)  

 (;0);(0;+)\left(-\infty;0\right);\left(0;+\infty\right)  

sprendinių nėra

3.

MULTIPLE CHOICE QUESTION

2 mins • 2 pts

sprendinių nėra

4.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

(-2;2)

5.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

(-2,5;0)

-2

-2;1

-1;0;-2

6.

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

Raskite nelygybės  x2+8x+160x^2+8x+16\ge0  sprendinius:

 (;+)\left(-\infty;+\infty\right)  

sprendinių nėra

 (4;+)\left(-4;+\infty\right)  

-4

7.

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

Raskite nelygybės 3x26x9>03x^2-6x-9>0  sprendinius

 (1;3)\left(-1;-3\right)  

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

-1;3

 x>3x>3  

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