命题P:对X属于[1,2],不等式X^2>或=k恒成立.命题Q:关于的X方程X^2-X+k=0有实数根.如果“非P”为假,“P且Q”为假,求的取值范围.ps:我做了,想对下答案.我的答案是k<或=1\4,P得到k<或=1。Q得到k<
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![命题P:对X属于[1,2],不等式X^2>或=k恒成立.命题Q:关于的X方程X^2-X+k=0有实数根.如果“非P”为假,“P且Q”为假,求的取值范围.ps:我做了,想对下答案.我的答案是k<或=1\4,P得到k<或=1。Q得到k<](/uploads/image/z/8624496-48-6.jpg?t=%E5%91%BD%E9%A2%98P%EF%BC%9A%E5%AF%B9X%E5%B1%9E%E4%BA%8E%5B1%2C2%5D%2C%E4%B8%8D%E7%AD%89%E5%BC%8FX%5E2%3E%E6%88%96%3Dk%E6%81%92%E6%88%90%E7%AB%8B.%E5%91%BD%E9%A2%98Q%3A%E5%85%B3%E4%BA%8E%E7%9A%84X%E6%96%B9%E7%A8%8BX%5E2%EF%BC%8DX%2Bk%3D0%E6%9C%89%E5%AE%9E%E6%95%B0%E6%A0%B9.%E5%A6%82%E6%9E%9C%E2%80%9C%E9%9D%9EP%E2%80%9D%E4%B8%BA%E5%81%87%2C%E2%80%9CP%E4%B8%94Q%E2%80%9D%E4%B8%BA%E5%81%87%2C%E6%B1%82%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.ps%3A%E6%88%91%E5%81%9A%E4%BA%86%2C%E6%83%B3%E5%AF%B9%E4%B8%8B%E7%AD%94%E6%A1%88.%E6%88%91%E7%9A%84%E7%AD%94%E6%A1%88%E6%98%AFk%26lt%3B%E6%88%96%3D1%5C4%2CP%E5%BE%97%E5%88%B0k%26lt%3B%E6%88%96%3D1%E3%80%82Q%E5%BE%97%E5%88%B0k%26lt)
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