Question

Va rog! Am neaparat nevoie!

Answer 1

[tex]3)\\ \overline{a2}+\overline{2a}+11=10a+2+20+a+11=11a+33=11(a+3)\ p.p\\ \rightarrow a+3=11\\ a=8\\ 82+28+11=121=11^2\\ 4)\\ D=I\cdot C+R , R\ \textless \ I\\ D=6\cdot 55+R=330+R, R\ \textless \ 6\\ D\in\{330+0,330+1,330+2,.,330+5\}=\\ \{330,331,332,333,334,335\}[/tex]