Reposting puzzle since no one has solved it yet:
You are allowed to use any number of mathematical operators or functions (e.g. +, -, *, /, sin, cos, tan, factorial, sqrt, powers, etc) EXCEPT floor and ceiling functions. The only constants that can appear in the solution are two digits - both of which must be '2'.
Use these rules to make the number 5.

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Can we use decimal point?

yes - looks like you may have found one of the solutions (I know 2 ways of doing this) :-)

Well, don't you know I am the smart one? :P :D

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