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Evaluate: int(sin2x)/(sin(x-pi/3)sin(x+p...

Evaluate: `int(sin2x)/(sin(x-pi/3)sin(x+pi/3))\ dx`

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`int(sin2x)/(sin(x-pi/3)sin(x+pi/3))\ dx`
`=intsin(x-pi/3+x+pi/3)/(sin(x-pi/3)sin(x+pi/3))\ dx`
`=int(sin(x-pi/3)cos(x+pi/3)+sin(x+pi/3)cos(x-pi/3))/(sin(x-pi/3)sin(x+pi/3))\ dx`
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