已知集合A={(x,y)|ax+y=1},B={(x,y)}|x+ay=1},C={(x,y)|x²+y²=1},问,(1)当a取何值时,(A∪B)∩C为含有两个元素的集合?(2)当a取何值时,(A∪B)∩C为含有三个元素的集合帅哥美女些!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 18:23:53
![已知集合A={(x,y)|ax+y=1},B={(x,y)}|x+ay=1},C={(x,y)|x²+y²=1},问,(1)当a取何值时,(A∪B)∩C为含有两个元素的集合?(2)当a取何值时,(A∪B)∩C为含有三个元素的集合帅哥美女些!](/uploads/image/z/11047035-3-5.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7B%EF%BC%88x%2Cy%EF%BC%89%7Cax%2By%3D1%7D%2CB%3D%7B%EF%BC%88x%2Cy%EF%BC%89%7D%7Cx%2Bay%3D1%7D%2CC%3D%7B%28x%2Cy%29%7Cx%26sup2%3B%2By%26sup2%3B%3D1%7D%2C%E9%97%AE%2C%EF%BC%881%EF%BC%89%E5%BD%93a%E5%8F%96%E4%BD%95%E5%80%BC%E6%97%B6%2C%EF%BC%88A%E2%88%AAB%EF%BC%89%E2%88%A9C%E4%B8%BA%E5%90%AB%E6%9C%89%E4%B8%A4%E4%B8%AA%E5%85%83%E7%B4%A0%E7%9A%84%E9%9B%86%E5%90%88%3F%EF%BC%882%EF%BC%89%E5%BD%93a%E5%8F%96%E4%BD%95%E5%80%BC%E6%97%B6%2C%EF%BC%88A%E2%88%AAB%EF%BC%89%E2%88%A9C%E4%B8%BA%E5%90%AB%E6%9C%89%E4%B8%89%E4%B8%AA%E5%85%83%E7%B4%A0%E7%9A%84%E9%9B%86%E5%90%88%E5%B8%85%E5%93%A5%E7%BE%8E%E5%A5%B3%E4%BA%9B%EF%BC%81)
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已知集合A={(x,y)|ax+y=1},B={(x,y)}|x+ay=1},C={(x,y)|x²+y²=1},问,(1)当a取何值时,(A∪B)∩C为含有两个元素的集合?(2)当a取何值时,(A∪B)∩C为含有三个元素的集合帅哥美女些!
已知集合A={(x,y)|ax+y=1},B={(x,y)}|x+ay=1},C={(x,y)|x²+y²=1},问,(1)当a取何值时,(A∪B)∩C为含有两个元素的集合?(2)当a取何值时,(A∪B)∩C为含有三个元素的集合
帅哥美女些!
已知集合A={(x,y)|ax+y=1},B={(x,y)}|x+ay=1},C={(x,y)|x²+y²=1},问,(1)当a取何值时,(A∪B)∩C为含有两个元素的集合?(2)当a取何值时,(A∪B)∩C为含有三个元素的集合帅哥美女些!
高手快来 弄不懂 高手做出来分享以下
(1)0,1(2)无解 应该是的
(1)a=0 (2)a=1
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