平面直角坐标系中点到已知解析式的直线的最短距离公式?1
人气:380 ℃ 时间:2020-04-01 02:02:26
解答
设点(a,b),直线解析式为Ax+By+C=0
距离=(Aa+Bb+C)的绝对值 除以 根号下A^2+B^2
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