集合问题(集合的交并集运算)
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/07/03 10:17:38
![](http://img.wesiedu.com/upload/f/d0/fd0b3e0a08d52ef39d3e003618ffb2cf.jpg)
![集合问题(集合的交并集运算)](/uploads/image/z/20239187-59-7.jpg?t=%E9%9B%86%E5%90%88%E9%97%AE%E9%A2%98%28%E9%9B%86%E5%90%88%E7%9A%84%E4%BA%A4%E5%B9%B6%E9%9B%86%E8%BF%90%E7%AE%97%29)
解题思路: 理解P¨Q=Q的含义,在分类讨论
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=289129")}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