已知函数f(x)=x^2-2ax+a+2,a属于R (1)若不等式f(x)<0的解集为∅,求实数a的取值范围(2)若不等式f(x)≥a对于x∈[0,正无穷)恒成立,求实数a的取值范围
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![已知函数f(x)=x^2-2ax+a+2,a属于R (1)若不等式f(x)<0的解集为∅,求实数a的取值范围(2)若不等式f(x)≥a对于x∈[0,正无穷)恒成立,求实数a的取值范围](/uploads/image/z/2832870-30-0.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dx%5E2-2ax%2Ba%2B2%2Ca%E5%B1%9E%E4%BA%8ER+%281%29%E8%8B%A5%E4%B8%8D%E7%AD%89%E5%BC%8Ff%28x%29%EF%BC%9C0%E7%9A%84%E8%A7%A3%E9%9B%86%E4%B8%BA%26%238709%3B%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%282%29%E8%8B%A5%E4%B8%8D%E7%AD%89%E5%BC%8Ff%28x%29%E2%89%A5a%E5%AF%B9%E4%BA%8Ex%E2%88%88%5B0%2C%E6%AD%A3%E6%97%A0%E7%A9%B7%EF%BC%89%E6%81%92%E6%88%90%E7%AB%8B%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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