10lg((11-2)*100.1*80+3-100.1*85)=48.0322829963979 11-2=9 100.1*9=900.9 900.9*80=72072 72072+3=72075 100.1*85=8508.5 72075-8508.5=63566.5 Ig(63566.5)= 4.80322829963979 4.80322829963979*10= 48.0322829963979 __________________________________________ 80+10lg11= 90.41392685158225 lg(11)=1.041392685158225 1.041392685158225*10=10.41392685158225 80+ 10.41392685158225=90.41392685158225