题目内容
求下列各式中x的取值范围.
(1)
(2)
(1)(-∞,0)∪(2,+∞)
(2)(-∞,5]
求下列各式中
(1)lg(x
求下列各式中x的取值范围:
(1)lg(x-10);(2);(3).
(1)lg(x-10);(2)log(x-1)(x+2);(3)log(x+1)(x-1)2.