Question
Answer
$$-i^{12}=-1$$
Explanation
| $$ \begin{aligned}-i^{12}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-1\end{aligned} $$ | |
| ① | $$ -i^{12} = - i^{4 \cdot 3 + 0} =
- \left( i^4 \right)^{ 3 } \cdot i^0 =
- 1^{ 3 } \cdot 1 =
- 1 $$ |
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