已知函数f(x)=2sin^2+2根号3x 2sinxcosx+1
问题描述:
已知函数f(x)=2sin^2+2根号3x 2sinxcosx+1
1,求f(x)的对称轴和对称中心 2,若x∈【-6/π,π/3】,求f(x)的定义域
答
1、f(x)=2sinxsinx+2√3sinxcosx+1=1-cos2x+√3sin2x+1=2sin(2x-π/6)+2对称轴:2x-π/6=kπ+π/2,得x=kπ/2+π/3对称中心:2x-π/6=kπ,得x=kπ/2+π/122、x∈【-π/6,π/3】,则2x-π/6∈【-π/2,π/2】所以f(x)的...