Question

Calculati;
0,1*{4+10³*[100*0,01+5,2*(4-1,2*0,1)]}
Ajutorrr ms :*

Answer 1

Se lucreaza in ordinea operatiilor in parantezele rotunde , apoi, in parantezele  drepte ,apoi in acolade,...etc. 10³=1000 ; 100·0,01=1 ; 1,2·0,1=0,12 ⇒
0,1·{4+1000·[1+5,2·(4-0,12)]}=
0,1·[4+1000·(1+5,2·3,88)]=
0,1·[4+1000·(1+20,176]=
0,1·(4+1000·21,176)=
0,1·(4+21176)=
0,1·21180=
2118