已知f(x)为二次函数,且f(x+1)+f(x-1)=2x^2-4x.(1)求f(x)得表达式 (2)当x∈[1/2,2]时求f(2^x)的最大(2)当x∈[1/2,2]时求f(2^x)的最大值与最小值特别是第二问!
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![已知f(x)为二次函数,且f(x+1)+f(x-1)=2x^2-4x.(1)求f(x)得表达式 (2)当x∈[1/2,2]时求f(2^x)的最大(2)当x∈[1/2,2]时求f(2^x)的最大值与最小值特别是第二问!](/uploads/image/z/1064422-46-2.jpg?t=%E5%B7%B2%E7%9F%A5f%28x%29%E4%B8%BA%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%2C%E4%B8%94f%EF%BC%88x%2B1%EF%BC%89%2Bf%28x-1%29%3D2x%5E2-4x.%281%29%E6%B1%82f%EF%BC%88x%EF%BC%89%E5%BE%97%E8%A1%A8%E8%BE%BE%E5%BC%8F+%282%29%E5%BD%93x%E2%88%88%5B1%2F2%2C2%5D%E6%97%B6%E6%B1%82f%282%5Ex%EF%BC%89%E7%9A%84%E6%9C%80%E5%A4%A7%282%29%E5%BD%93x%E2%88%88%5B1%2F2%2C2%5D%E6%97%B6%E6%B1%82f%282%5Ex%EF%BC%89%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%8E%E6%9C%80%E5%B0%8F%E5%80%BC%E7%89%B9%E5%88%AB%E6%98%AF%E7%AC%AC%E4%BA%8C%E9%97%AE%21)
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