• 已知,则f(f(f(-5)))= .试题及答案-填空题-云返教育

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      已知,则f(f(f(-5)))=         

      试题解答


      6
      根据已知条件依次求出f(-5)、f(f(-5))、f(f(f(-5)))的值.

      ∵已知
      ,∴f(-5)=0,f(f(-5))=f(0)=1,
      f(f(f(-5)))=f(1)=1+5=6,
      故答案为:6.
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