Question

calculeaza b=[11,2(3)-9,(2)]*9-0.01

Answer 1

11.2(3)=(1123-112)/90=1011/90
  9.(2)=  (92-9)/9         =     83/9
0.01=1/100

(1011/90-83/9)*9-1/100
181/90*9-1/100
181/10-1/100
(1810-1)/100
1809/100=18.09