2cos(x/2)(3^(1/2)sin(x/2)-cos(x/2))怎么化简?
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2cos(x/2)(3^(1/2)sin(x/2)-cos(x/2))怎么化简?
2cos(x/2)(3^(1/2)sin(x/2)-cos(x/2))怎么化简?
2cos(x/2)(3^(1/2)sin(x/2)-cos(x/2))怎么化简?
2cos(x/2)(3^(1/2)sin(x/2)-cos(x/2))
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