Предмет: Алгебра, автор: Caligo2011

Решите неравенство (x-1)(x-2)/(x-5)>=0

Ответы

Автор ответа: Gviona

[(x-1)(x-2)] / (x-5) >=0
Найдем значения Х, которые обнулят скобки:
x-1=0 x-2=0 x-5=0
x=1 x=2 x=5

Отметим эти точки на числовой прямой:

_____-_____[1]______+_____[2]_______-______(5)_____+_____
//////////////////////////// /////////////////////////

Ответ:x e [1;2] U (5; + беск.)

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