学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.94
所属科目:小学英语
问答连线
(1)Who’s he ?                    A  Dancing.
(2)What’s her hobby?             B  He’s my father.
(3)Are they pandas?               C  I like blue coat.
(4)What do you like to wear?      D  Yes ,I do
(5)Do you like that cap?          E  I make a snowman.
(6)What do you do in winter?      F  No , they aren’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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