已知函数f(x)=log2x+x²-2,g(x)=2的x次方+x-2,若实数m.n满足f(m)=0,g(n)=0,则A.g(m)<0<f(n)B.0<g(m)<f(n)C.f(n)<0<g(m)D.f(n)<g(m)<0
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![已知函数f(x)=log2x+x²-2,g(x)=2的x次方+x-2,若实数m.n满足f(m)=0,g(n)=0,则A.g(m)<0<f(n)B.0<g(m)<f(n)C.f(n)<0<g(m)D.f(n)<g(m)<0](/uploads/image/z/2586048-24-8.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dlog2x%2Bx%26%23178%3B-2%2Cg%EF%BC%88x%EF%BC%89%3D2%E7%9A%84x%E6%AC%A1%E6%96%B9%2Bx-2%2C%E8%8B%A5%E5%AE%9E%E6%95%B0m.n%E6%BB%A1%E8%B6%B3f%EF%BC%88m%EF%BC%89%3D0%2Cg%EF%BC%88n%EF%BC%89%3D0%2C%E5%88%99A.g%EF%BC%88m%EF%BC%89%EF%BC%9C0%EF%BC%9Cf%EF%BC%88n%EF%BC%89B.0%EF%BC%9Cg%EF%BC%88m%EF%BC%89%EF%BC%9Cf%EF%BC%88n%EF%BC%89C.f%EF%BC%88n%EF%BC%89%EF%BC%9C0%EF%BC%9Cg%EF%BC%88m%EF%BC%89D.f%EF%BC%88n%EF%BC%89%EF%BC%9Cg%EF%BC%88m%EF%BC%89%EF%BC%9C0)
已知函数f(x)=log2x+x²-2,g(x)=2的x次方+x-2,若实数m.n满足f(m)=0,g(n)=0,则A.g(m)<0<f(n)B.0<g(m)<f(n)C.f(n)<0<g(m)D.f(n)<g(m)<0
已知函数f(x)=log2x+x²-2,g(x)=2的x次方+x-2,若实数m.n满足f(m)=0,g(n)=0,则
A.g(m)<0<f(n)
B.0<g(m)<f(n)
C.f(n)<0<g(m)
D.f(n)<g(m)<0
已知函数f(x)=log2x+x²-2,g(x)=2的x次方+x-2,若实数m.n满足f(m)=0,g(n)=0,则A.g(m)<0<f(n)B.0<g(m)<f(n)C.f(n)<0<g(m)D.f(n)<g(m)<0
是不是选c
收起