搜索
①1.8＋2.2＝ | ②3.3﹣0.33＝ | ③0.16÷0.4×2.5＝ |
④0.7÷3.6＝ | ⑤2.4×50＝ | ⑥10×3.8﹣3.8＝ |
⑦0.5×0.5＝ | ⑧12.1÷0.01＝ | ⑨2.7×0.3÷2.7×0.3＝ |
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
