\(A\hept{\begin{cases}10^{\text{o}}T\\0^{\text{o}}\end{cases}}\)
\(B\hept{\begin{cases}10^{\text{o}}Đ\\10^{\text{o}}N\end{cases}}\)
\(C\hept{\begin{cases}15^{\text{o}}Đ\\10^{\text{o}}B\end{cases}}\)
\(D\hept{\begin{cases}20^{\text{o}}T\\20^{\text{o}}N\end{cases}}\)
nhìn mà chả hiểu
\(A\left(0^o;10^oT\right)\)
\(B\left(10^oN;10^oĐ\right)\)
\(C\left(10^oB;10^oĐ\right)\)
\(D\left(20^oN;20^oT\right)\)