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2014-10-09T09:38:17+03:00
1a)-0,5+0,75+[-1,(6)]+1,5-0,(3) +0,25=
-0,5+0,75-1,(6)+1,5-0,(3) +0,25=0.25+0.25+1.5-1.(6)-0.(3)=0.50+1.5-1.(6)-0.(3)=1.55--1.(6)-0.(3)=-0.(8)-0.(3)=-0.(11)

 b)

=-4·100/700+6·20/700-31·28/700+8·35/700+28/700=-400/700+120/700-868/700+280/700+28/700=920/700-868/700+280/700+28/700=52/700+280/700+28/700=332/700+28/700=360/700=36/70=18/35