y=sin(x+π/6)cos(x+π/6) 化简
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y=sin(x+π/6)cos(x+π/6) 化简
y=sin(x+π/6)cos(x+π/6) 化简
y=sin(x+π/6)cos(x+π/6) 化简
sin(x+π/6)cos(x+π/6)
=1/2sin(2x+π/3)
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