Four Fours/Lemmata/Three Fours/1/Solutions

Puzzle: Three Fours: $1$

Using exactly $3$ instances of the number $4$, the task is to write an expression for $1$, using whatever arithmetical operations you consider necessary.

Solutions

Solution $1$

$1 = \dfrac {4 - \sqrt 4} {\sqrt 4}$

Solution $2$

$1 = \dfrac {\sqrt 4 + \sqrt 4} 4$