学进去-教育应平等而普惠
试题
类型:按要求填空
难度系数:0.65
所属科目:小学英语
Read, look and choose.
What  Why  How  Where  Who
1. --- ________ did you go to the zoo yesterday?
--- Because I wanted to see animals.
2. --- ________ are you? --- I'm fine. Thank you.
3. --- ________ is that girl over there? --- She’s my sister.
4. --- ________ is he going to be? ---Maybe he'll be a teacher.
5. --- ________ are you going? --- I'm going to the hill.
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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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