设函数f x =2cosxsin(x+π/6)+2sinxcos(x+设函数f x =2cosxsin(x+π/6)+2sinxc_数学解答

设函数f x =2cosxsin(x+π/6)+2sinxcos(x+
设函数f x =2cosxsin(x+π/6)+2sinxcos(x +π/6)(1)x属于[0.π/2]时函数值域

人气：162 ℃　时间：2020-10-01 08:21:09

解答

f(x)=2cosxsin(x+π/6)＋2sinxcos(x+π/6)
= 2sin(2x+π/6)
x∈[0,π/2]
f(x)∈[ -1,2]