设函数f(x)=x^2-2x,g(x)=3^x (1)求函数y=f[g(x)],x∈[1,2]的值域 (2)求函数y=设函数f(x)=x^2-2x,g(x)=3^x (1)求函数y=f[g(x)],x∈[1,2]的值域 (2)求函数y=g[f(x)],x∈[1,2]的值域
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![设函数f(x)=x^2-2x,g(x)=3^x (1)求函数y=f[g(x)],x∈[1,2]的值域 (2)求函数y=设函数f(x)=x^2-2x,g(x)=3^x (1)求函数y=f[g(x)],x∈[1,2]的值域 (2)求函数y=g[f(x)],x∈[1,2]的值域](/uploads/image/z/8326503-63-3.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dx%5E2-2x%2Cg%28x%29%3D3%5Ex+%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0y%3Df%5Bg%28x%29%5D%2Cx%E2%88%88%5B1%2C2%5D%E7%9A%84%E5%80%BC%E5%9F%9F+%EF%BC%882%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0y%3D%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3Dx%5E2-2x%2Cg%28x%29%3D3%5Ex+%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0y%3Df%5Bg%28x%29%5D%2Cx%E2%88%88%5B1%2C2%5D%E7%9A%84%E5%80%BC%E5%9F%9F+%EF%BC%882%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0y%3Dg%5Bf%28x%29%5D%2Cx%E2%88%88%5B1%2C2%5D%E7%9A%84%E5%80%BC%E5%9F%9F)
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