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ΑΝΙΣΩΣΕΙΣ ΜΕ ΑΠΟΛΥΤΕΣ ΤΙΜΕΣ

Authored by ΕΥΘΥΜΙΟΣ ΣΟΥΚΑΡΑΣ

Mathematics

10th Grade

Used 3+ times

ΑΝΙΣΩΣΕΙΣ ΜΕ ΑΠΟΛΥΤΕΣ ΤΙΜΕΣ
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x+112\left|\left|x+1\right|-1\right|\le2  

 x(,4)(2+)x\in\left(-\infty,-4\right)\cup\left(2+\infty\right)  

 x(,4][2+)x\in\left(-\infty,-4\right]\cup\left[2+\infty\right)  

 x[4,2] x\in\left[-4,2\right]\   

 x(4,2)x\in\left(-4,2\right)  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

|x-5|<2

x(3,7)x\in\left(3,7\right)

x(,3)(7,+)x\in\left(-\propto,3\right)\cup\left(7,+\propto\right)

x[3,7]x\in\left[3,7\right]

x(,3][7,+)x\in\left(-\propto,3\right]\cup\left[7,+\propto\right)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 3x+69\left|-3x+6\right|\ge9  

 x(,1)(5,+)x\in\left(-\infty,-1\right)\cup\left(5,+\infty\right)  

 x(,1][5,+)x\in\left(-\infty,-1\right]\cup\left[5,+\infty\right)  

 x(1,5)x\in\left(-1,5\right)  

 x[1,5]x\in\left[-1,5\right]  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

|-x|=|x|

Σωστό

Λάθος

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

|x|>3

3<x<3-3<x<3

x>3 ηˊ x<3x>3\ \ ή\ \ x<-3

x3 ηˊ x3x\ge3\ \ ή\ \ x\le-3

3x3-3\le x\le3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

|x+1|>-2

ισχύει για κάθε πραγματικό αριθμό

αδύνατη

x(3,1)x\in\left(-3,1\right)

x(,3)(1+)x\in\left(-\infty,-3\right)\cup\left(1+\infty\right)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x121x3\left|x-1\right|-2\left|1-x\right|\le3  

ισχύει για κάθε πραγματικό αριθμό

είναι αδύνατη

 4x2-4\le x\le2  

 x4  ηˊ  x2x\ge-4\ \ ή\ \ x\le2  

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