学进去-教育应平等而普惠
试题
类型:排序题
难度系数:0.65
所属科目:小学英语
Dingding 和朋友们正在谈论上周末的事情。请用数字 1~6 给下列句子排序。
(       ) Did you buy any bananas?
(       ) What did you buy?
(       ) No, we bought some pears.
(       ) Where did you go last weekend, Dingding?
(       ) We bought some fruit.
(       ) I went to the supermarket with my mum.
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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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