Four Fours/125/Solutions/2

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Puzzle: Four Fours: $125$

Using exactly $4$ instances of the number $4$, the task is to write an expression for $125$, using whatever arithmetical operations you consider necessary.


Solution

$125 = \paren {\dfrac {\sqrt 4} {.4} } \uparrow \sqrt {\dfrac {4} {.\dot 4} }$