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LISSAkira
@LISSAkira
August 2022
1
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Решите мне/ cos2x = 1/2.
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TanyaTeplo
Используем метод решения простейших тригонометрических уравнений и получаем:2x = ±arccos(1/2) + 2πn = ±π/3 + 2πn (здесь и далее, n ∈ Z).Откуда x = ±π/6 + πn.Ответ: x = ±π/6 + πn.
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