Answer
$$\frac{-2-i}{10+5i}=-\frac{1}{5}$$
Explanation
| $$ \begin{aligned}\frac{-2-i}{10+5i}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-\frac{1}{5}\end{aligned} $$ | |
| ① | Divide $ \, -2-i \, $ by $ \, 10+5i \, $ to get $\,\, \dfrac{-1}{5} $. ( view steps ) |
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