Question

Perform the indicated operation & simplify. Express the answer in terms of i (as a complex number).(11 - 4i) . Bar(11 – 41)

Answer 1

Answer:

(11-4i).bar(11-4i) = 137

Explanation:$\begin{gathered} (11-4i)(\bar{11-4i)} \\ =(11-4i)(11+4i)_{} \\ =11^2-(4i)^2 \\ =121+16 \\ =137 \end{gathered}$