学进去-教育应平等而普惠
试题
类型:听长对话回答问题
难度系数:0.65
所属科目:初中英语
听对话,回答下列小题。
1.What day is it tomorrow?
A.Friday.B.Saturday.C.Sunday.
2.What are they going to do?
A.Climb mountains.B.Go camping.C.Play tennis.
3.When will they meet?
A.At 2:00 p.m.B.At 2:30 p.m.C.At 3:00 p.m.
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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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