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Метод заміни змінної. Наприклад 2sin²x - 5sinx + 2 = 0. Що приймаємо за нову змінну? Нехай t = sinx, де t є [-1; 1]. Отримуємо квадратне рівняння: 2t² - 5t + 2 = 0.
Розкладання на множники. Приклад: sinx - cosx*sinx = . Винесення спільного множника за дужки: sinx(1 - cosx) = 0. Далі прирівнюємо кожен множник до нуля окремо: sin(x) = 0 або (1 - cos(x) = 0.
cos(x) = -1 x = 𝝅+ 2𝝅 n, n єZ
Created by: Luko4ka
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