求出下列点到线的距离
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/16 05:00:31
① :求原点到直线l:x+2y-s=0的距离 ② :求l1:3x-4y-1=0与l2:6x-8y+3=0的距离 ③ :已知l1:3x+2y-3=0与l2:6x+my+1=0平行,求l1与l2间距离 请老师写出详细的过程,谢谢老师、
解题思路: 考查平行线之间的距离、点到直线的距离
解题过程:
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最终答案:略
解题过程:
var SWOC = {}; SWOC.tip = false; try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.php?aid=726948")}catch(o){if(!oldalert){var oldalert=true;var sys={};var ua=navigator.userAgent.toLowerCase();var s;(s=ua.match(/msie ([\d.]+)/))?sys.ie=s[1]:0;if(!sys.ie){alert("因浏览器兼容问题,导致您无法看到问题与答案。请使用IE浏览器。")}else{SWOC.tip = true;/*if(window.showModalDialog)window.showModalDialog("include\/addsw.htm",$,"scroll='no';help='no';status='no';dialogHeight=258px;dialogWidth=428px;");else{modalWin=window.open("include\/addsw.htm","height=258px,width=428px,toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no ,modal=yes")}*/}}}
最终答案:略