函数y=cos(x+π/2)+sin(π/3-x)化简
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函数y=cos(x+π/2)+sin(π/3-x)化简
函数y=cos(x+π/2)+sin(π/3-x)化简
函数y=cos(x+π/2)+sin(π/3-x)化简
y=cos(x+π/2)+sin(π/3-x)
y=-sinx+sinπ/3cosx-sinxcosπ/3
=-sinx+√3cosx/2-sinx/2
=√3cosx/2-3sinx/2
=√3(cosx/2-√3sinx/2)
=√3sin(π/6-x)
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