Предмет: Алгебра, автор: vladborisov00

#4 Решить систему
Тема: Системы показательных уравнений и неравенств
Срочно!!! Прошу

Приложения:

Ответы

Автор ответа: Аноним

2 ^ ( Х - 1 ) < = V 2
0,1 ^ ( 3x^2 - 2 ) = 0,1 ^ ( 2x^2 + x + 4 )
••••••••••••••••••
2 ^ ( Х - 1 ) < = 2 ^ 1/2
Х - 1 < = 1/2
Х < = 1 1/2
••••••••••••
0,1 ^ ( 3х^2 - 2 ) = 0,1 ^ ( 2x^2 + x + 4 )
3x^2 - 2 = 2x^2 + x + 4
X^2 - x - 6 = 0
D = 1 + 24 = 25 = 5^2
X1 = ( 1 + 5 ) : 2 = 3 ( не подходит под ОД3 )
X2 = ( 1 - 5 ) : 2 = - 2
Ответ ( - 2 )

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