作业帮函数y=cos(x+π/6）,x属于【0,π/2】的值域是
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/20 03:30:12
x){ھ
ԩxqޓ]}& Ō 7L|>iÞ?&HLv6ؚ_P` T9 c@`4A#1L@=
`E :6yv h
函数y=cos(x+π/6）,x属于【0,π/2】的值域是
函数y=cos(x+π/6）,x属于【0,π/2】的值域是
函数y=cos(x+π/6）,x属于【0,π/2】的值域是
for x = π/2
y = cos(π/2+π/6)
= cos(2π/3)
= -1/2
x属于【0,π/2】的值域是
[-1/2,1]