函数y=cos(x+π/6）,x属于【0,π/2】的值域是
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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forx=π/2y=cos
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]