\(N=\dfrac{2L}{3,4}=3000\left(nu\right)\)
\(a,\Rightarrow\left\{{}\begin{matrix}G=X=30\%N=900\left(nu\right)\\A=T=20\%N=600\left(nu\right)\end{matrix}\right.\)
\(b,\) \(\left\{{}\begin{matrix}A_1=T_2=150\left(nu\right)\\X_1=G_2=300\left(nu\right)\\A_2=A-A_1=450\left(nu\right)\\X_2=X-X_1=600\left(nu\right)\end{matrix}\right.\)
Nếu mạch 1 là mạch gốc.
\(\left\{{}\begin{matrix}rA=450\left(nu\right)\\rU=150\left(nu\right)\\rX=600\left(nu\right)\\rG=300\left(nu\right)\end{matrix}\right.\)
Khi mạch 2 là gốc.
\(\left\{{}\begin{matrix}rA=150\left(nu\right)\\rU=450\left(nu\right)\\rX=300\left(nu\right)\\rG=600\left(nu\right)\end{matrix}\right.\)