Question
Answer
$$\dfrac{4-i\cdot12}{20-i\cdot21}=\dfrac{332-156i}{841}$$
Explanation
| $$ \begin{aligned}\frac{4-i\cdot12}{20-i\cdot21}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{332-156i}{841}\end{aligned} $$ | |
| ① | Divide $ \, 4-12i \, $ by $ \, 20-21i \, $ to get $\,\, \dfrac{332-156i}{841} $. ( view steps ) |
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