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Log_((1)/(2))(x+8)-log_((1)/(2))(x-3)gt Log_((1)/(2))(3x)

Вопрос

log_((1)/(2))(x+8)-log_((1)/(2))(x-3)gt log_((1)/(2))(3x)

Решения

4.6 (192 Голоса)
Радослав
Экспертная проверка
мастер · Репетитор 5 лет

Ответ

To solve the inequality , we can use the properties of logarithms.First, let's simplify the left side of the inequality using the quotient rule of logarithms: So the inequality becomes: Since the base of the logarithms is , which is less than 1, the inequality sign will be reversed when taking the logarithm: Now, let's solve this inequality: We can solve this quadratic inequality by factoring: The critical points are and . We can test the intervals to find the solution set:For , the inequality is true.For , the inequality is false.For , the inequality is true.Therefore, the solution set for the inequality is .