f(x)=根号3cosx+sinx(-pai/2
问题描述:
f(x)=根号3cosx+sinx(-pai/2
答
y=2(sinx*1/2+cosx*√3/2)
=2(sinxcosπ/3+cosxsinπ/3)
=2sin(x+π/3)
-π/6