高三數(shù)學(xué)三角函數(shù)的圖像和性質(zhì)
2025-09-17
f(x)=√3(1-cos2x)/2+1/2*sin2x =sin2xcosπ/3-cos2xsinπ/3+√3/2 =sin(2x-π/3)+√3/2 2π/3<=2x-π/3<=5π/3 所以最大值是sin(2π/3)+√3/2=√3...
2025-09-17
f(x)=√3(1-cos2x)/2+1/2*sin2x =sin2xcosπ/3-cos2xsinπ/3+√3/2 =sin(2x-π/3)+√3/2 2π/3<=2x-π/3<=5π/3 所以最大值是sin(2π/3)+√3/2=√3...