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数学
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求两平行线2x+3y-8=0和2x+3y+18=0之间的距离.
人气:491 ℃ 时间:2019-12-01 13:08:03
解答
利用两平行直线间的距离公式完成计算
d=|18-(-8)|/[根号下(2^2+3^2)]=26/根号13=2根号13
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