Ответы на вопрос:
Sin 3x*cos 3x = 0.5 1/2*sin 6x = 1/2 sin 6x = 1 6x = pi/2 + 2pi*k x = pi/12 + pi/3*k sin x + sin 3x = 0 2sin 2x*cos x = 0 4sin x*cos^2 x = 0 sin x = 0, x = pi*k cos x = 0, x = pi/2 + pi*k cos^2 2x - sin^2 2x = cos 4x = -√3/2 4x1 = 5pi/6 + 2pi*k, x1 = 5pi/24 + pi/2*k 4x2 = 7pi/6 + 2pi*k, x2 = 7pi/24 + pi/2*k
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