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| 2.5 | + | 3.6 | = | |
| 7.4 | 3.8 | |||
| 0.9 | 0.7 | |||
| 9.1 | 8.9 | |||
| 6.2 | 4.8 |
| 4.3 | - | 2.9 | = | |
| 7.1 | 6.9 | |||
| 5.5 | 1.8 | |||
| 6.6 | 1.1 | |||
| 8 | 7.2 |
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
