Предмет: Математика, автор: pomogitepg63

решите логарифмические уравнения помогите пожалуйста ​

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Ответы

Автор ответа: Tkinter
0

Ответ: нет решения

Пошаговое объяснение: ВЫПОЛНИМ ЗАМЕНУ ПЕРЕМЕННЫХ

t = log(√3)x , получим рациональное уравнение 2t² = -5t -7   ⇔  

2t² +5t +7 = 0

D = 25 - 4·2·7 = - 31 < 0 - нет корней

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