Inequalities

Read the complete problem, then answer its numbered subtasks.

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Exercise 9

Book 2 · Inequalities

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Լուծել անհավասարումը.

Subtask 1

$() () 2 x + 94 - x \geq 0$ :

1

$[3;$ $] 4$

2

$(3;$ $] 4$

3

$(- \infty;$ $) 4$

4

$] (- \infty; 4$

Subtask 2

$2 x 2 - 0 \leq - x$ :

1

$\emptyset$

2

$) (- 2; 0 \cup 0;$ $2$

3

$) - 2; 0$

4

$(0;$ $2$

Subtask 3

$x 5$ $1 \leq$ :

1

$] (- \infty; 0$

2

${} 0$

3

$\emptyset$

4

$[] - 1; 1$

Subtask 4

$() () l g 8 x 45 l g x - \geq -$ :

1

$() 5; + \infty$

2

$[5;$ $) + \infty$

3

$\emptyset$

4

$() - \infty; 0$

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