Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 2010-01-30 13:52:11

Emo
Guest

Find all the functions !!

Hii !

Find all the functions : IN

  IN, such as :


  :
  And


f is strictly increasing of IN

IN .

#2 2010-01-31 06:36:00

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: Find all the functions !!

What is f(1)?  What about f(3)?


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

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