1.设A={(x,y)|y=x²+2x+5},B={(x,y)|y= ax+1},试求,①.当a为何值时,集合A∩B有两个元素?②.当a为何值时,集合A∩B至多有一个元素?2.已知集合A={x|x²+px+q=0},B={x|qx²+px+1=0},同时
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![1.设A={(x,y)|y=x²+2x+5},B={(x,y)|y= ax+1},试求,①.当a为何值时,集合A∩B有两个元素?②.当a为何值时,集合A∩B至多有一个元素?2.已知集合A={x|x²+px+q=0},B={x|qx²+px+1=0},同时](/uploads/image/z/12876436-28-6.jpg?t=1.%E8%AE%BEA%EF%BC%9D%EF%BD%9B%28x%2Cy%29%7Cy%EF%BC%9Dx%26sup2%3B%EF%BC%8B2x%EF%BC%8B5%EF%BD%9D%2CB%EF%BC%9D%EF%BD%9B%28x%2Cy%29%7Cy%EF%BC%9D+ax%EF%BC%8B1%EF%BD%9D%2C%E8%AF%95%E6%B1%82%2C%E2%91%A0.%E5%BD%93a%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2C%E9%9B%86%E5%90%88A%E2%88%A9B%E6%9C%89%E4%B8%A4%E4%B8%AA%E5%85%83%E7%B4%A0%3F%E2%91%A1.%E5%BD%93a%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2C%E9%9B%86%E5%90%88A%E2%88%A9B%E8%87%B3%E5%A4%9A%E6%9C%89%E4%B8%80%E4%B8%AA%E5%85%83%E7%B4%A0%3F2.%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%EF%BC%9D%7Bx%7Cx%26sup2%3B%2Bpx%2Bq%EF%BC%9D0%7D%2CB%EF%BC%9D%7Bx%7Cqx%26sup2%3B%2Bpx%2B1%EF%BC%9D0%7D%2C%E5%90%8C%E6%97%B6)
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