Odpowiedź:
[tex]a)|\frac{1}{4} -0,4|+|\frac{2}{5} -1|=|\frac{1}{4} -\frac{2}{5} | + | -\frac{3}{5} |=| -\frac{3}{20} |+ \frac{3}{5} =\frac{3}{20} +\frac{3}{5} =\frac{3}{20}+\frac{12}{20} =\frac{15}{20} =\frac{3}{4} \\\\b)|2-\sqrt{3} | - | 2\sqrt{3} -1 |=2-\sqrt{3} -(2\sqrt{3} -1)=2-\sqrt{3}-2\sqrt{3} +1)=3-3\sqrt{3} \\\\c)|-8 -|2-| 5-8|||=|-8 -|2-| -3| || =| -8|-| 2-3| |=| -8-|-1 || =| -8-1|=| -9|=9[/tex]
