[tex] {2}^{ - 1} + {2}^{ - 2} = [/tex]
[tex] = \frac{1}{2} + {( \frac{1}{2} )}^{2} = [/tex]
[tex] = \frac{1}{2} + \frac{1}{4} = [/tex]
[tex] = \frac{2}{4} + \frac{1}{4} = [/tex]
[tex] = \frac{3}{4} = 0.75[/tex]
Răspuns:
2^-1=1/2 ;2^-2=1/4 1/2+1/3=2/4+2/4=3/4=0,75
Explicație pas cu pas:
