A商场 | B商场 | C商场 | |||
溶豆豆 | 38.67元 | 溶豆豆 | 38.77元 | 溶豆豆 | 38.60元 |
超人迪迦 | 52.30元 | 超人迪迦 | 51.29元 | 超人迪迦 | 51.30元 |
比卡丘 | 9.89元 | 比卡丘 | 8.80元 | 比卡丘 | 9.99元 |
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