Biểu thức nào sau đây đúng?
A.\({{U}_{AB}}={{U}_{AM}}+{{U}_{MN}}+{{U}_{NB}}\)
B.\(U_{AB}^{2}=U_{AM}^{2}+U_{MN}^{2}+U_{NB}^{2}\)
C.\(U_{AB}^{2}=U_{AM}^{2}+{{\left( {{U}_{MN}}+{{U}_{NB}} \right)}^{2}}\)
D.\(U_{AB}^{2}=U_{AM}^{2}+{{\left( {{U}_{MN}}-{{U}_{NB}} \right)}^{2}}\)
A.\({{U}_{AB}}={{U}_{AM}}+{{U}_{MN}}+{{U}_{NB}}\)
B.\(U_{AB}^{2}=U_{AM}^{2}+U_{MN}^{2}+U_{NB}^{2}\)
C.\(U_{AB}^{2}=U_{AM}^{2}+{{\left( {{U}_{MN}}+{{U}_{NB}} \right)}^{2}}\)
D.\(U_{AB}^{2}=U_{AM}^{2}+{{\left( {{U}_{MN}}-{{U}_{NB}} \right)}^{2}}\)
Loga
Hóa Học lớp 12
