设函数f(x)=ax+b/x(a,b∈R),若f(x)在点(1,f(1))处的切线的斜率为1,.用a表示b.
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设函数f(x)=ax+b/x(a,b∈R),若f(x)在点(1,f(1))处的切线的斜率为1,.用a表示b.
设函数f(x)=ax+b/x(a,b∈R),若f(x)在点(1,f(1))处的切线的斜率为1,.用a表示b.设g(x)=lnx-f(x),若g(x)≤-1对定义域内的x恒成立.(1)求实数a的取值范围.(2)对任意的θ∈[0,π/2),证明:g(1-sinθ)≤g(1+sinθ)
![](http://img.wesiedu.com/upload/4/1f/41f47d0fa17c08406f91d33024b4fc8a.jpg)
设函数f(x)=ax+b/x(a,b∈R),若f(x)在点(1,f(1))处的切线的斜率为1,.用a表示b.设g(x)=lnx-f(x),若g(x)≤-1对定义域内的x恒成立.(1)求实数a的取值范围.(2)对任意的θ∈[0,π/2),证明:g(1-sinθ)≤g(1+sinθ)
![](http://img.wesiedu.com/upload/4/1f/41f47d0fa17c08406f91d33024b4fc8a.jpg)
![设函数f(x)=ax+b/x(a,b∈R),若f(x)在点(1,f(1))处的切线的斜率为1,.用a表示b.](/uploads/image/z/8445452-68-2.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dax%2Bb%2Fx%EF%BC%88a%2Cb%E2%88%88R%EF%BC%89%2C%E8%8B%A5f%EF%BC%88x%EF%BC%89%E5%9C%A8%E7%82%B9%EF%BC%881%2Cf%EF%BC%881%EF%BC%89%EF%BC%89%E5%A4%84%E7%9A%84%E5%88%87%E7%BA%BF%E7%9A%84%E6%96%9C%E7%8E%87%E4%B8%BA1%2C.%E7%94%A8a%E8%A1%A8%E7%A4%BAb.)
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设函数f(x)=ax+b/x(a,b∈R),若f(x)在点(1,f(1))处的切线的斜率为1,.用a表示b.
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