学进去-教育应平等而普惠
试题
类型:句子匹配
难度系数:0.85
所属科目:小学英语
给问句找到合适的答句。
A. Yes, it is.
B. No, I can't.
C. She is in the school.
D. Horses can run.
E. It's very short.
1.Is it long or short? (______
2.Where is Jenny? (______
3.What animals can run? (______
4.Can you dance? (______
5.Is it a monkey? (______
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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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