判断题 1·(√2)²=2( ) 2·√-1-x²是二次根式( ) 3·√13²-12²=√13²-√12&s4·√a,√ab²,c√1/a是同类二次根式( )二·填空题5·当x_____式√2x-3有意义.6·等式√(x-1)²=1-x成
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![判断题 1·(√2)²=2( ) 2·√-1-x²是二次根式( ) 3·√13²-12²=√13²-√12&s4·√a,√ab²,c√1/a是同类二次根式( )二·填空题5·当x_____式√2x-3有意义.6·等式√(x-1)²=1-x成](/uploads/image/z/12672635-59-5.jpg?t=%E5%88%A4%E6%96%AD%E9%A2%98+1%C2%B7%EF%BC%88%E2%88%9A2%29%26sup2%3B%3D2%28+%29+2%C2%B7%E2%88%9A-1-x%26sup2%3B%E6%98%AF%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%EF%BC%88+%EF%BC%89+3%C2%B7%E2%88%9A13%26sup2%3B-12%26sup2%3B%3D%E2%88%9A13%26sup2%3B-%E2%88%9A12%26s4%C2%B7%E2%88%9Aa%2C%E2%88%9Aab%26sup2%3B%2Cc%E2%88%9A1%EF%BC%8Fa%E6%98%AF%E5%90%8C%E7%B1%BB%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%EF%BC%88+%EF%BC%89%E4%BA%8C%C2%B7%E5%A1%AB%E7%A9%BA%E9%A2%985%C2%B7%E5%BD%93x_____%E5%BC%8F%E2%88%9A2x-3%E6%9C%89%E6%84%8F%E4%B9%89.6%C2%B7%E7%AD%89%E5%BC%8F%E2%88%9A%EF%BC%88x-1%29%26sup2%3B%3D1-x%E6%88%90)
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