2sin2x-2sin(2x+π/3) =2sin(2x-π/3)
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2sin2x-2sin(2x+π/3)=2sin(2x-π/3)2sin2x-2sin(2x+π/3)=2sin(2x-π/3)2sin2x-2sin(2x+π/3)=2sin(2x-π/3)错了呗。
2sin2x-2sin(2x+π/3) =2sin(2x-π/3)
2sin2x-2sin(2x+π/3) =2sin(2x-π/3)
2sin2x-2sin(2x+π/3) =2sin(2x-π/3)
错了呗。提公因式应该为2sin×-(兀/3)
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