(1)列表(完成下列表格).
… | -3 | -2 | -1 | 0 | 1 | 2 | 3 | … | |||
… | 6 | 3 | 2 | 3 | 3 | 6 | … |
(3)根据函数图象,完成以下问题:
①当函数的图象向下平移______个单位时,图象与轴有三个公共点;
②结合图象探究发现,当满足______时,方程有四个解.
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