(1)如图,点A的坐标为.
①若点P的坐标为,则点P是点A关于的 倍特征点;
②在,,这三个点中,点 是点A关于的倍特征点;
③直线l经过点A,与y轴交于点D,.点E在直线l上,且点E是点A关于的倍特征点,求点E的坐标;
(2)若当k取某个值时,对于函数的图象上任意一点M,在上都存在点N,使得点M是点N关于的k倍特征点,直接写出k的最大值和最小值.
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