两个代数式x-1和x-3的值的符号相同,则x的取值范围是
A.x>3
B.x
人气:397 ℃ 时间:2019-08-18 07:49:34
解答
(1)X-1>0,X>1
X-3>0,X>3
取X>3
(2)X-1
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