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学进去-教育应平等而普惠
试题
类型:对划线部分提问
难度系数:0.40
所属科目:小学英语
按要求完成下列句子。
1. did,Ann ,evening, homework, her ,yesterday(.)(连词成句)
2. I was at home last night.(就划线部分提问)
3. My brother was in the park yesterday morning.(翻译句子)
4. There was no water and air.(改为一般疑问句)
5. The children had a good time in the park. (就划线部分提问)
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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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