Images X3 SIN X

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X3 sin x. Cos9x-cos7x+cos3x-cosx 0 решение. 2 Sin x cos x. 3 Sin 2 x 4 sin x cos x 5 cos 2 x 2. 4sin3x + 3cos3x = 5,2.
Cos9x-cos7x+cos3x-cosx 0 решение. 2 Sin x cos x. 3 Sin 2 x 4 sin x cos x 5 cos 2 x 2. 4sin3x + 3cos3x = 5,2.

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