学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
Read and match.
1. When will you leave?                                        A. 我不坐公交车去。
2. We had a picnic in the park.                           B. 你将什么时候离开?
3. I have meat for dinner.                                  C. 我爸爸以前是名医生。
4. My father was a doctor before.                           D. 我们在公园野餐。
5. I'm not going by bus.                                        E. 晚餐我吃肉。
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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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