学进去-教育应平等而普惠
试题
类型:听音排序
难度系数:0.65
所属科目:小学英语
听录音,给下列句子标号。每小题读两遍。(用1,2,3,4,5,6表示)
( ) Show me your pen, Lily.
( ) Hello, Chen Jie!
( ) This is the face.
( ) Open your pencil box, Song Jia!
( ) Let’s go to school, John!
( ) Brown, brown. Turn around.
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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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