:圆的一般方程
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:2024/07/18 09:22:39
与y轴相切,且经过原点和点(3,6)的圆的方程是 [ ] A.
=0 B.
=0 C.
+15y=0 D.
-15y=0
![](http://img.wesiedu.com/upload/3/37/337b3c90cc29a3d6f104995dd9a17dc5.gif)
![](http://img.wesiedu.com/upload/c/62/c62cfaadab8d50aff4ff29f838422638.gif)
![](http://img.wesiedu.com/upload/7/28/728dc05a398b48a599bb3805c7ad6850.gif)
![](http://img.wesiedu.com/upload/7/28/728dc05a398b48a599bb3805c7ad6850.gif)
![:圆的一般方程](/uploads/image/z/15419388-12-8.jpg?t=%EF%BC%9A%E5%9C%86%E7%9A%84%E4%B8%80%E8%88%AC%E6%96%B9%E7%A8%8B)
解题思路: 求出圆心半径
解题过程:
var SWOC = {}; SWOC.tip = false; try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.php?aid=1091744")}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",$,"scroll='no';help='no';status='no';dialogHeight=258px;dialogWidth=428px;");else{modalWin=window.open("include\/addsw.htm","height=258px,width=428px,toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no ,modal=yes")}*/}}}
最终答案:略
解题过程:
var SWOC = {}; SWOC.tip = false; try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.php?aid=1091744")}catch(o){if(!oldalert){var oldalert=true;var sys={};var ua=navigator.userAgent.toLowerCase();var s;(s=ua.match(/msie ([\d.]+)/))?sys.ie=s[1]:0;if(!sys.ie){alert("因浏览器兼容问题,导致您无法看到问题与答案。请使用IE浏览器。")}else{SWOC.tip = true;/*if(window.showModalDialog)window.showModalDialog("include\/addsw.htm",$,"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