(1)当直线过O时,请在备用图1中画出图形,并试探究,,的关系;
(2)当直线不过O且点E在上时,请在备用图2中画出示意图,并判(1)中的关系式是否存在?若存在,请证明;若不存在,请说明理由;
(3)当直线不过O且点E在直线上时,请在备用图3中画出示意图,判断(1)中的关系是否成立(不必证明).
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