Ta có : \(U_{23}=U_{13}-U_{12}\)
\(\Rightarrow U_{12}=17V-3,6V\)
\(\Rightarrow U_{12}=13,4V\)
Ta có : U13= U12+ U23
=> U12= U13-U23
U12= 17V - 3.6V
=>U12=13.4V
Chúc bn học tốt ^^
Ta có : U23=U13−U12U23=U13−U12
⇒U12=17V−3,6V⇒U12=17V−3,6V
⇒U12=13,4V