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已知反比例函数Y=(1-2M)/X图象上两点A(X1,Y1),B(X2,Y2),当X1<0则M的取值范围是?
人气:299 ℃ 时间:2020-03-29 18:39:09
解答
∵y1∴(1-2m)/x1<(1-2m)/x2
(1-2m)/x1-(1-2m)/x2<0
(1-2m)×(x2-x1)/x1x2<0
∵x1<0∴1-2m>0∴m<1/2
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