(1)填写下表.
饼的张数 | 烙饼方法 | 最少需要的时间 |
1 | 先烙正面,再烙反面 | |
2 | 2张一起烙 | |
3 | 按最佳方法烙 | |
4 | 2张2张地烙 | |
5 | 先烙 | |
6 | ||
… | … | … |
(2) 每次总烙
(3) 假如烙100张饼,最少需要
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