To understand this problem of Function  you must know : The concept of composite function

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To understand this problem of Function  you must know : The concept of periodic functions , order pair relation

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To understand this problem of Function  you must know : The concept of mod  functions and simple trigonometric calculations

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To understand this problem of Function  you must know : The concept of even and odd functions and how to deal functional equations

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To understand this problem of Function  you must know : The concept of cubic functions

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To understand this problem of Function  you must know : The concept of composite function

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To understand this problem of Function  you must know : The concept of AP and how we deal functional equations

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To understand this problem of Function  you must know : The concept of composite function

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To understand this problem of Function  you must know : The concept of inverse  function

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To understand this problem of Function  you must know : The concept of peridic function

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To understand this problem of Function  you must know : The concept of greatest integer function

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To understand this problem of Function  you must know : The concept of periodic functions

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To understand this problem of Function  you must know : How to solve trigonometric equations and how to find increasing and decreasing intervals of a function.

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