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A Perplexing Expression (Posted on 2005-10-14) Difficulty: 3 of 5
Using only math symbols (no functions like sin, cos, log, etc.) create an expression with only two 2s equal to 5 (no other digits or constants).

See The Solution Submitted by Brian Smith    
Rating: 3.5000 (6 votes)

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re(4): perhaps? -- spoiler perhaps. | Comment 8 of 18 |
(In reply to re(3): perhaps? -- spoiler perhaps. by Leonidas)

It says no functions like sin, cos, log, etc.  I take that to mean functions that use letters to represent them.  Math symbols, even those representing functions, are presumably allowed.  In fact even + is a function, of two arguments.  Thus my notation that sqrt would have to be written as a surd (radical) to qualify, rather than written as letters (as it was posted here because of the limitations of adding math symbols in a comment)

I'll try, however, with "view source"


Edited on October 14, 2005, 9:26 pm
  Posted by Charlie on 2005-10-14 21:22:16

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