Hammond Tucker
07/25/2024 · High School
6) Возвести комплексное число в 200 степень и найти корни 4 -ой степе- ни. \( \quad z=-4-4 i \)
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Корни 4-й степени числа \( z^{200} = 2^{500} \) можно найти по формуле:
\[
w_k = 2^{125} \left( \cos\left(\frac{250\pi + 2k\pi}{4}\right) + i \sin\left(\frac{250\pi + 2k\pi}{4}\right) \right), \quad k = 0, 1, 2, 3
\]
Модуль корней равен \( 2^{125} \), а аргументы можно упростить до \( 0.5\pi + \frac{k\pi}{2} \), где \( k = 0, 1, 2, 3 \).
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