学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.64
所属科目:小学英语
选择合适的疑问词填空。
What  What colour How much Who When Where Why
(1) __________ are you doing?
(2) __________ are you going to go?
(3)—__________ is the bag?
—Twenty yuan.
(4)—__________ will you come back?
—A quarter to ten.
(5)—__________ is that woman?
—Miss Tang.
(6)—__________ is the sofa?
—It’s black and white.
(7)__________ are you wearing a dress?
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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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