Wartość bezwzględna
|2√5-3|-|√5-2|+|5-3√5| =
=2√5-√5+2-5+3√5=
=4√5-3
√(5-2√3)^2 - 2√(√3-3)^2 =
|(5-2√3)| - 2|(√3-3)| =
=5-2√3 + 2√3-6 =
=-1
√(1-√7)^2 - √(√7+3)^2 =
=|(1-√7)|- |(√7+3)| =
=-1+√7 - √7-3=
=-4
|1-|1-|1-4||| =
=|1-|1-3|| =
=|1-2| =1
√(3-√2)^2 =
=|(3-√2)| =
=3-√2
