Answer
$$\frac{2022+2025isint}{7-3icost}=\frac{2022+2025i^2nst}{7-3icost}$$
Explanation
| $$ \begin{aligned}\frac{2022+2025isint}{7-3icost}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{2022+2025i^2nst}{7-3icost}\end{aligned} $$ | |
| ① | $$ 2025 i s i n t = 2025 i^{1 + 1} n s t = 2025 i^2 n s t $$ |
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