设P和Q是两个集合,定义集合P-Q=|x|x∈P且x不属于Q},若P={1,2,3,4},Q=|x|√(x+1/2)<2,x属于R},则P-Q=___
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![设P和Q是两个集合,定义集合P-Q=|x|x∈P且x不属于Q},若P={1,2,3,4},Q=|x|√(x+1/2)<2,x属于R},则P-Q=___](/uploads/image/z/12968913-57-3.jpg?t=%E8%AE%BEP%E5%92%8CQ%E6%98%AF%E4%B8%A4%E4%B8%AA%E9%9B%86%E5%90%88%2C%E5%AE%9A%E4%B9%89%E9%9B%86%E5%90%88P-Q%3D%7Cx%7Cx%E2%88%88P%E4%B8%94x%E4%B8%8D%E5%B1%9E%E4%BA%8EQ%7D%2C%E8%8B%A5P%3D%7B1%2C2%2C3%2C4%7D%2CQ%3D%7Cx%7C%E2%88%9A%28x%2B1%2F2%29%EF%BC%9C2%2Cx%E5%B1%9E%E4%BA%8ER%7D%2C%E5%88%99P-Q%3D___)
设P和Q是两个集合,定义集合P-Q=|x|x∈P且x不属于Q},若P={1,2,3,4},Q=|x|√(x+1/2)<2,x属于R},则P-Q=___
设P和Q是两个集合,定义集合P-Q=|x|x∈P且x不属于Q},若P={1,2,3,4},Q=|x|√(x+1/2)<2,x属于R},则P-Q=___
设P和Q是两个集合,定义集合P-Q=|x|x∈P且x不属于Q},若P={1,2,3,4},Q=|x|√(x+1/2)<2,x属于R},则P-Q=___
√(x+1/2)<2
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