Предмет: Алгебра, автор: ilen99518

решите неравенство:
$(23-5x) ( sqrt{7} - 2,1) textless 0$

Ответы

Автор ответа: TARTILLO

решите неравенство:
(23-5x)(√7-2.1)<0

√7-2,1>0, т.к. √7>2,1

(23-5x)(√7-2.1)<0 ⇔ (23-5x)<0 ⇔5x>23 x>23/5

----------------------------23/5 //////////////////////////

x∈(23/4;∞)

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