学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.00
所属科目:小学英语
幸福手牵手。
(  ) 1.What does your father do?                         A  She goes to work by bike.
(  ) 2.What does your aunt do?                           B  He’s an accountant.
(  ) 3.How does Amy’s mother go to work?                C  Yes, she does.
(  ) 4.Does she go to work by bus?                       D  My aunt is a doctor.
(  ) 5.Is he going to play table tennis next week?       E  No, he isn’t.
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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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