已知函数y=1/2sin(2x+π/6)当x属于【0,π/2】时,求y的取值范围
问题描述:
已知函数y=1/2sin(2x+π/6)当x属于【0,π/2】时,求y的取值范围
上面的打错了,应该是:已知函数y=2sin(x+π/6)当x属于【0,π/2】时,求y的取值范围
答
当x属于【0,π/2】时,
2x+π/6∈[π/6,7π/6]
sin(2x+π/6)∈[-1/2,1]
y∈[-1/4,1/2]