今晚作业中的问题,急!!!
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/06/26 02:25:17
如果直线y=-2x-1与直线y=3x+m相交于第三象限,请确定实数m的取值范围
![今晚作业中的问题,急!!!](/uploads/image/z/19411567-7-7.jpg?t=%E4%BB%8A%E6%99%9A%E4%BD%9C%E4%B8%9A%E4%B8%AD%E7%9A%84%E9%97%AE%E9%A2%98%EF%BC%8C%E6%80%A5%EF%BC%81%EF%BC%81%EF%BC%81)
解题思路: 由二元一次方程组和不等式的知识可求
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=375682")}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