学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.64
所属科目:小学英语
选择恰当的答句
A. It’s nice.
B. Great!
C. Good night.
D. A1l right.
E. His name is Wang Bing.
[[QOrDeR]]Let’s go to Beijing.(_____
【小题2】Turn on the tap,please.(_____
【小题3】What’ s his name?(_____
【小题4】Look at the pencil sharpener.(_____
【小题5】Good night.(_____
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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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