学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.85
所属科目:小学英语
1. primary school                                                                             a. 写一条留言
2. Best wishes to you!                                                                 b. 小学
3. write a message                                                                         c. 许多乐趣
4. a wonderful girl                                                                        d. 给你最美好的祝愿!
5.a lot of joy                                                                                       e. 一个出色的女孩
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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