已知函数f(x)=sin(2x+π/3)+sin(2x-π/3)+2cos^2x-1
求f(x)在区间{-π/4,π/4}上的最大值和最小值
x∈[-π/4,π/4]①
2x∈[-π/2,π/2]②
2x+π/4∈[-π/4,3π/4]③
-1
邮箱: 联系方式: