Ex.20 a) determinați valorile lui x

Ex.20 a) determinați valorile lui x
a)213(10)=x(2)
213:2=106rest1
106:2=53rest0
53:2=26 rest1
26:2=13 rest0
13:2=6 rest1
6:2=3 rest0
3:2=1rest1
x=11010101
verificare 2⁷+2⁶+2⁴+2²+2⁰=213