设函数f(x)=ka^x-a^(-x)(a>o且a≠)是定义域为R上的奇函数(1)若f(1)>0,试求不等式f(x^2+2x)+f(x-4)>0的解集(2)若f(1)=3/2,且g(x)=a^2x+a^-2x-4f(x),求g(x)在[1,.正无穷大)上的最小值
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![设函数f(x)=ka^x-a^(-x)(a>o且a≠)是定义域为R上的奇函数(1)若f(1)>0,试求不等式f(x^2+2x)+f(x-4)>0的解集(2)若f(1)=3/2,且g(x)=a^2x+a^-2x-4f(x),求g(x)在[1,.正无穷大)上的最小值](/uploads/image/z/1991570-50-0.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dka%5Ex-a%5E%28-x%29%28a%3Eo%E4%B8%94a%E2%89%A0%29%E6%98%AF%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BAR%E4%B8%8A%E7%9A%84%E5%A5%87%E5%87%BD%E6%95%B0%EF%BC%881%EF%BC%89%E8%8B%A5f%281%29%EF%BC%9E0%2C%E8%AF%95%E6%B1%82%E4%B8%8D%E7%AD%89%E5%BC%8Ff%28x%5E2%2B2x%29%2Bf%28x-4%29%EF%BC%9E0%E7%9A%84%E8%A7%A3%E9%9B%86%EF%BC%882%EF%BC%89%E8%8B%A5f%281%29%3D3%2F2%2C%E4%B8%94g%28x%29%3Da%5E2x%2Ba%5E-2x-4f%28x%29%2C%E6%B1%82g%28x%29%E5%9C%A8%5B1%2C.%E6%AD%A3%E6%97%A0%E7%A9%B7%E5%A4%A7%29%E4%B8%8A%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC)
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