1.已知集合A是方程ax²+bx+1=0的解集.1.若A={-1.1},求a,b的值.(2)若A={1},求a,b的值、 2.已知集合A={x丨x-a=0},B={ax-1=0},若A含于B,求a的值.(2)若B含与A,求a的值.
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![1.已知集合A是方程ax²+bx+1=0的解集.1.若A={-1.1},求a,b的值.(2)若A={1},求a,b的值、 2.已知集合A={x丨x-a=0},B={ax-1=0},若A含于B,求a的值.(2)若B含与A,求a的值.](/uploads/image/z/11471452-52-2.jpg?t=1.%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%E6%98%AF%E6%96%B9%E7%A8%8Bax%26%23178%3B%2Bbx%2B1%3D0%E7%9A%84%E8%A7%A3%E9%9B%86.1.%E8%8B%A5A%3D%7B-1.1%7D%2C%E6%B1%82a%2Cb%E7%9A%84%E5%80%BC.%EF%BC%882%EF%BC%89%E8%8B%A5A%3D%7B1%7D%2C%E6%B1%82a%2Cb%E7%9A%84%E5%80%BC%E3%80%81+2.%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Bx%E4%B8%A8x-a%3D0%7D%2CB%3D%7Bax-1%3D0%7D%2C%E8%8B%A5A%E5%90%AB%E4%BA%8EB%2C%E6%B1%82a%E7%9A%84%E5%80%BC.%EF%BC%882%EF%BC%89%E8%8B%A5B%E5%90%AB%E4%B8%8EA%2C%E6%B1%82a%E7%9A%84%E5%80%BC.)
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