$$ \begin{aligned}sqrt\cdot8e^{4.5pii}\cdot(1+j)& \xlongequal{ }sqrt\cdot8e^{4pii}\cdot(1+j) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}sqrt\cdot8e^{4i^2p}\cdot(1+j)\end{aligned} $$ | |
① | $$ 4 p i i = 4 i^{1 + 1} p = 4 i^2 p $$ |