学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.94
所属科目:小学英语
情境匹配。
(    ) (1) How many stops are there?   
(    ) (5) What for?                   E. Only three stops.
A.You can take bus No.3 to get there.( ) (2) May I speak to Mike?B.Yes, this is Mike speaking.( ) (3) Whose gloves are they ?C.I want to draw a picture.( ) (4) How can I get there ?D.They are mine.
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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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