Răspuns:
a=5/9×9/25-2/25×25/10=1/5-1/5=0
b=3/2×(29/9-10/3)²+75/90=3/2×(29/9-30/9)²+5/6=
3/2×(-1/9)²+5/6=3/2×1/81+5/6=1/54+5/6=1/54+45/54=46/54=23/27=0,85
c=2/10-2/10(75/100-1/4)=2/10-2/10(75/100-25/100)
=2/10-2/10×50/100=2/10-1/10=1/10=0,1
Ordinea este:0 <0,1 <0,85 deci 0<1/10<23/27
