Question
Answer
$$2i^{28}=2$$
Explanation
| $$ \begin{aligned}2i^{28}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2\end{aligned} $$ | |
| ① | $$ 2i^{28} = 2 \cdot i^{4 \cdot 7 + 0} =
2 \cdot \left( i^4 \right)^{ 7 } \cdot i^0 =
2 \cdot 1^{ 7 } \cdot 1 =
2 \cdot 1 $$ |
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