学进去-教育应平等而普惠
试题
类型:听力选择题
难度系数:0.65
所属科目:高中英语
听下面一段较长对话,回答以下小题。
1.On which day will the man leave?
A.The 22nd.B.The 23rd.C.The 28th.
2.Which flight will the man take from Salt Lake City to New York?
A.Flight BA 2007.B.Flight BA 7001.C.Flight BA 2710.
3.How long will the man have to wait at Kennedy Airport?
A.Half an hour.B.One and a half hours.C.Two hours.
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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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