Question
Answer
$$\dfrac{-20-i\cdot40}{80-i\cdot40}=-\dfrac{i}{2}$$
Explanation
| $$ \begin{aligned}\frac{-20-i\cdot40}{80-i\cdot40}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-\frac{i}{2}\end{aligned} $$ | |
| ① | Divide $ \, -20-40i \, $ by $ \, 80-40i \, $ to get $\,\, \dfrac{-i}{2} $. ( view steps ) |
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