设函数f(x)=ln(x^2-ax+2)的定义域为A (1)若2∈A,求实数a的范围 (2)若函数y=f(x)的定义域为R,设函数f(x)=ln(x^2-ax+2)的定义域为A(1)若2∈A,求实数a的范围(2)若函数y=f(x)的定义
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![设函数f(x)=ln(x^2-ax+2)的定义域为A (1)若2∈A,求实数a的范围 (2)若函数y=f(x)的定义域为R,设函数f(x)=ln(x^2-ax+2)的定义域为A(1)若2∈A,求实数a的范围(2)若函数y=f(x)的定义](/uploads/image/z/1996858-10-8.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dln%EF%BC%88x%5E2-ax%2B2%EF%BC%89%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BAA+%EF%BC%881%EF%BC%89%E8%8B%A52%E2%88%88A%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E8%8C%83%E5%9B%B4+%EF%BC%882%EF%BC%89%E8%8B%A5%E5%87%BD%E6%95%B0y%3Df%EF%BC%88x%EF%BC%89%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BAR%2C%E8%AE%BE%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dln%EF%BC%88x%5E2-ax%2B2%EF%BC%89%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BAA%EF%BC%881%EF%BC%89%E8%8B%A52%E2%88%88A%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E8%8C%83%E5%9B%B4%EF%BC%882%EF%BC%89%E8%8B%A5%E5%87%BD%E6%95%B0y%3Df%EF%BC%88x%EF%BC%89%E7%9A%84%E5%AE%9A%E4%B9%89)
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