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数学
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函数y=根号下x+3除以x+1的自变量x的取值范围是?
人气:156 ℃ 时间:2019-10-19 16:04:19
解答
如果x+1不在根号下:
x >= -3且x 不等于-1
如果x+1在根号下:
x -1
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