学进去-教育应平等而普惠
试题
类型:判断句子正误
难度系数:0.85
所属科目:小学英语
Read and tick(√)or cross(×). 读一读,判断下列图片的对错。
(      ) 1. My name’s Bob. I’m a monkey. I have sixteen bananas.
(      ) 2. A: How many bees do you see? B: I see fifteen.
(      ) 3. I’m Ted. I have eight balloons.
(      ) 4. A: How many balloons do you have?   B: Twelve.
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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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