A certain transmission line operating at co $=106$ rad$/$s has a $=8$ dB$/$m$,/?=1$ rad$/$m$,$ and Zo $=60+$ j$40$ Q$,$ and is $2$ m long. If the line is connected to a source of $10/0^$ V$,$ Zs $=40$ ft and terminated by a load of $20+$ j$50$ ft$,$ determine $($a$)$ The input impedance $($b$)$ The sending$-$end current $($c$)$ The current at the middle of the lin