(1)如图,平移线段AB到⊙O的长度为1的弦和,则这两条弦的位置关系是 ;在点中,连接点A与点 的线段的长度等于线段AB到⊙O的“平移距离”;
(2)若点A,B都在直线上,记线段AB到⊙O的“平移距离”为,求的最小值;
(3)若点A的坐标为,记线段AB到⊙O的“平移距离”为,直接写出的取值范围.
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2