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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
对号入座,请将II中相应的序号填入I栏的括号内。
(   ) 1. Whose computer is this?             A  No, they aren’t.
(   ) 2. Is this your CD?                    B  It’s Ken’s.
(   ) 3. Are these Uncle Booky’s glasses?    C  Yes, I am.
(   ) 4. Do you feel happy?                 D  Yes, it is.
(   ) 5. Are you hot?                        E  No, I don’t.
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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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