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Автор - Emilia676

НАЙТИ ОБЩЕЕ РЕШЕНИЕ.

Ответ

Проверено экспертом

Автор - Universalka

1) x² - 1 ≤ 0

(x - 1)(x + 1) ≤ 0

           +                          -                         +

____________[- 1]__________[1]__________

                           /////////////////////////

x ∈ [- 1 ; 1]

2) x² - 3x > 0

x(x - 3) > 0

           +                         -                        +

____________(0)__________(3)__________

//////////////////////////                        ////////////////////////

x ∈ (- ∞ ; 0) ∪ (3 ; + ∞)

Общее решение :                    

                       ////////////////////////////////////////                     

__________[-1]_________(0)________[1]___________(3)____

//////////////////////////////////////////                                                //////////

 

x ∈ [- 1 ; 0)

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