已知函數(shù)f(x)=sin(2x+π/6)+sin(2x-π/6)-2cos^2x 1.f(x)的值域和最小正周期 2.y=f(x)的單調(diào)增區(qū)間
已知函數(shù)f(x)=sin(2x+π/6)+sin(2x-π/6)-2cos^2x 1.f(x)的值域和最小正周期 2.y=f(x)的單調(diào)增區(qū)間
已知函數(shù)f(x)=sin(2x+π/6)+sin(2x-π/6)-2cos^2x
1.f(x)的值域和最小正周期
2.y=f(x)的單調(diào)增區(qū)間
優(yōu)質(zhì)解答
f(x)=sin(2x+π/6)+sin(2x-π/6)-2cos^2x=√3sin2x+cos2x+1=2sin(2x+π/6)+1
1.f(x)的值域[-1,3],最小正周期π
kπ-π/3