Răspuns:
Sper sa te ajute!
Explicație pas cu pas:
a)
[tex] \frac{1}{5} . \frac{1}{4} . \frac{1}{3} . \frac{1}{2} [/tex]
B) 1,21=1,2100
1,2(1)=1,2111
1,(21)=1,2121
1,22=1,2200
1,21; 1,2(1); 1,(21); 1,22
C)
[tex] \frac{9}{2} = 4.5 \\ - \frac{7}{9} = 0.(7)[/tex]
[tex] - 4. - \frac{7}{9} .4. \frac{9}{2} [/tex]
