求y=sin(2x+1)cos(2x-1)-cos(2x+1)sin(2x-1)的导数

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求y=sin(2x+1)cos(2x-1)-cos(2x+1)sin(2x-1)的导数
求y=sin(2x+1)cos(2x-1)-cos(2x+1)sin(2x-1)的导数

求y=sin(2x+1)cos(2x-1)-cos(2x+1)sin(2x-1)的导数
y'=(sin(2x+1)cos(2x-1)-cos(2x+1)sin(2x-1) )'
=sin'(2x+1-2x+1)
=sin'1
=0

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