f(x)=√3sin(2013π-x)cos(2π-x)+sin²(3π/2+x)+a=√3sin2x/2+cos2x/2+1/2+a=sin(2x+π/6)+1/2+a,x∈[-π/6,π/3],当x=π/6时,f(x)有最大值=3/2+a,当x=-π/6时,f(x)有最小值=a,3/2+2a=3/2,a=0,f(x)=sin(2x+π/6)+1/2;
一道高中数学卷子第17题设函数f(x)=根号3sin(2013派-x)cos(2派-x)+sin^2(3派/2+x)+a
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