设f(x)=bx/ax²+1(a,b∈Z),且f(1)=1/2,f(2)>1/3(1)求fx的表达式(2)若方程f(x)+mx/x+1=0在区间(-1,1)内有且仅有两个不等的实根,求实数m的取值范围
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![设f(x)=bx/ax²+1(a,b∈Z),且f(1)=1/2,f(2)>1/3(1)求fx的表达式(2)若方程f(x)+mx/x+1=0在区间(-1,1)内有且仅有两个不等的实根,求实数m的取值范围](/uploads/image/z/3999365-53-5.jpg?t=%E8%AE%BEf%EF%BC%88x%EF%BC%89%3Dbx%2Fax%26%23178%3B%2B1%EF%BC%88a%2Cb%E2%88%88Z%EF%BC%89%2C%E4%B8%94f%EF%BC%881%EF%BC%89%3D1%2F2%2Cf%EF%BC%882%EF%BC%89%EF%BC%9E1%2F3%EF%BC%881%EF%BC%89%E6%B1%82fx%E7%9A%84%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%882%EF%BC%89%E8%8B%A5%E6%96%B9%E7%A8%8Bf%EF%BC%88x%EF%BC%89%2Bmx%2Fx%2B1%3D0%E5%9C%A8%E5%8C%BA%E9%97%B4%EF%BC%88-1%2C1%EF%BC%89%E5%86%85%E6%9C%89%E4%B8%94%E4%BB%85%E6%9C%89%E4%B8%A4%E4%B8%AA%E4%B8%8D%E7%AD%89%E7%9A%84%E5%AE%9E%E6%A0%B9%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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