(1)正方体的两个面涂成黑色,两个面涂成白色,两个面涂成黄色,黑色朝上甲赢,白色朝上乙赢,黄色朝上丙赢.
(2)正方体的一个面涂成黑色,两个面涂成白色,三个面涂成黄色,黑色朝上甲赢,白色朝上乙赢,黄色朝上丙赢.
(3)正方体的六个面分别涂成红色、橙色、黄色、绿色、青色、蓝色,红色朝上甲赢,黄色朝上乙赢,青色朝上丙赢,橙色、绿色、蓝色朝上都不算,重新抛.
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