Inequalities

Read the complete problem, then answer its numbered subtasks.

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Exercise 12

Book 2 · Inequalities

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Լուծել անհավասարումը.

Subtask 1

$5 - x 2$ $2 > -$ :

1

$() - \infty; + \infty$

2

$\emptyset$

3

$(- \infty;$ $) 4$

4

$] (- \infty; 5$

Subtask 2

$2 x x 120 - - <$ :

1

$() () - \infty; - 3 \cup 4; + \infty$

2

$(- 4;$ $) 4$

3

$() () - \infty; - 4 \cup 4; + \infty$

4

$() - 3; 4$

Subtask 3

$() l o g 6 x 0 - > 0, 7$ :

1

$(5;$ $) + \infty$

2

$() 5; 6$

3

$() - \infty; 6$

4

$() - \infty; 5$

Subtask 4

$(2 x$ $) () 2 - 9 c t g x + 2 < 0$ :

1

$() () 3; 00; 3 - \cup$

2

$() 3; 3 -$

3

$(; - \infty$ $) (33; - \cup$ $) + \infty$

4

$(); 3 - \infty$

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