学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.64
所属科目:小学英语

[[QOrDeR]]Can you help me,please?
【小题2】Who's that?
【小题3】What's the date today?
【小题4】Shall we go to the park this afternoon?
【小题5】Thanks a lot.
A.That's all right.
B.It's June 1.
C.Of course.
D.This is Lily.
 
E.That's a good idea.
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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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