设A={XlX²-ax+a²-19=0,B={X²-5x+6=O},c={Xlx²+2x-8=o}①A∩B=A∪B,求a的值;②Φ⊂/≠A∩B,且A∩C=Φ,求a的值;③A∩B=A∩C≠Φ,求a的值;
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 03:54:05
![设A={XlX²-ax+a²-19=0,B={X²-5x+6=O},c={Xlx²+2x-8=o}①A∩B=A∪B,求a的值;②Φ⊂/≠A∩B,且A∩C=Φ,求a的值;③A∩B=A∩C≠Φ,求a的值;](/uploads/image/z/1856883-3-3.jpg?t=%E8%AE%BEA%3D%7BXlX%26%23178%3B-ax%2Ba%26%23178%3B-19%3D0%2CB%3D%7BX%26%23178%3B-5x%2B6%3DO%7D%2Cc%3D%7BXlx%26%23178%3B%2B2x-8%3Do%7D%E2%91%A0A%E2%88%A9B%3DA%E2%88%AAB%2C%E6%B1%82a%E7%9A%84%E5%80%BC%3B%E2%91%A1%CE%A6%26%238834%3B%2F%E2%89%A0A%E2%88%A9B%2C%E4%B8%94A%E2%88%A9C%3D%CE%A6%2C%E6%B1%82a%E7%9A%84%E5%80%BC%3B%E2%91%A2A%E2%88%A9B%3DA%E2%88%A9C%E2%89%A0%CE%A6%2C%E6%B1%82a%E7%9A%84%E5%80%BC%3B)
x){nmuDNnbv"ihikM+lkuA+ F&.p|ԱHry)
{M\xnN2';ζ疡*^7f3P5MRs~pe===<;
设A={XlX²-ax+a²-19=0,B={X²-5x+6=O},c={Xlx²+2x-8=o}①A∩B=A∪B,求a的值;②Φ⊂/≠A∩B,且A∩C=Φ,求a的值;③A∩B=A∩C≠Φ,求a的值;
设A={XlX²-ax+a²-19=0,B={X²-5x+6=O},c={Xlx²+2x-8=o}①A∩B=A∪B,求a的值;②Φ⊂/≠A∩B,且A∩C=Φ,求a的值;③A∩B=A∩C≠Φ,求a的值;
设A={XlX²-ax+a²-19=0,B={X²-5x+6=O},c={Xlx²+2x-8=o}①A∩B=A∪B,求a的值;②Φ⊂/≠A∩B,且A∩C=Φ,求a的值;③A∩B=A∩C≠Φ,求a的值;
设A={XlX²-ax+a²-19=0,...