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Difficulty: 3 of 5 Latest: For I Was (in Numbers)
Solve:
FOR = I x WAS
where W, A, and S represent consecutive digits.

(No Solution Yet, 1 Comments) Submitted on 2024-05-16 by K Sengupta   
Difficulty: 3 of 5 Bonus: An Odd Function (in Just Math) Rating: 3.83
Let f:R→R satisfy
  1. f(a)≠0 for some a in R
  2. f(xf(y))=yf(x) for all x,y in R
Prove that f(-x)=-f(x) for all x in R.
(Solution Posted, 18 Comments) Submitted on 2006-12-28 by Bractals   
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Posted on 2024-05-09 by K Sengupta (No Solution Yet, 2 Comments)

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