学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.94
所属科目:小学英语
对话连线。
1.Did you miss me?                       a. Yes, I have fun.
2.Did you have fun in Beijing?             b. I went to the cinema yesterday.
3.What did you do?                        c. Yes, I miss you.
4.Did you go shopping?                    d. Thank you!
5.The scarf is for you.                     e. Yes, We went to Wangfujing.
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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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