1.方程x²=0的实数根的个数为( )A.0个 B.1个 C.2个 D.无数个2.如图,△ABC的顶点都在圆O上,已知∠B=60°,则∠CAO的度数( )解方程:(1)(x+2)²-8=0 (2)x(x-3)=x (3)(x-1)²/x²-(x-1)/x
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![1.方程x²=0的实数根的个数为( )A.0个 B.1个 C.2个 D.无数个2.如图,△ABC的顶点都在圆O上,已知∠B=60°,则∠CAO的度数( )解方程:(1)(x+2)²-8=0 (2)x(x-3)=x (3)(x-1)²/x²-(x-1)/x](/uploads/image/z/170713-1-3.jpg?t=1.%E6%96%B9%E7%A8%8Bx%26%23178%3B%3D0%E7%9A%84%E5%AE%9E%E6%95%B0%E6%A0%B9%E7%9A%84%E4%B8%AA%E6%95%B0%E4%B8%BA%EF%BC%88+%EF%BC%89A.0%E4%B8%AA+B.1%E4%B8%AA+C.2%E4%B8%AA+D.%E6%97%A0%E6%95%B0%E4%B8%AA2.%E5%A6%82%E5%9B%BE%2C%E2%96%B3ABC%E7%9A%84%E9%A1%B6%E7%82%B9%E9%83%BD%E5%9C%A8%E5%9C%86O%E4%B8%8A%2C%E5%B7%B2%E7%9F%A5%E2%88%A0B%3D60%C2%B0%2C%E5%88%99%E2%88%A0CAO%E7%9A%84%E5%BA%A6%E6%95%B0%EF%BC%88++%EF%BC%89%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A%EF%BC%881%EF%BC%89%28x%2B2%29%26%23178%3B-8%3D0++%EF%BC%882%EF%BC%89x%28x-3%29%3Dx+%EF%BC%883%EF%BC%89%28x-1%29%26%23178%3B%2Fx%26%23178%3B-%EF%BC%88x-1%EF%BC%89%2Fx)
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