Mathematics
Mathematics, 30.07.2021 06:30, kalbaugh

Giải phương trình lượng giác
cos2x. cosx + sinx .cos3x = sin2x. sinx+ sin3x .cosx

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Giải phương trình lượng giác
cos2x. cosx + sinx .cos3x = sin2x. sinx+ sin3x .cosx...

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