Four Fours/47

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Puzzle

Using exactly $4$ instances of the number $4$, the task is to write an expression for $47$, using whatever arithmetical operations you consider necessary.


Solutions

Solution $1$

$47 = 4! + 4! - \dfrac 4 4$

Solution $2$

$47 = \dfrac {4! - 4} {. \dot 4} + \sqrt 4$

Solution $3$

$47 = 44 + \sqrt {\dfrac 4 {. \dot 4} }$


Also see

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