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学进去-教育应平等而普惠
试题
类型:判断题
难度系数:0.65
所属科目:小学英语
判断句子(下列句子正确的打“√”,错误的打“×”)。
(____) 1. Big Ben is very old and very tall.
(____) 2. The London Eye is old and high.
(____) 3. The River Thames is very long and wide.
(____) 4. Tower Bridge is a bridge.
(____) 5. The London Eye is in London.
(____) 6. You’ll see Big Ben in England.
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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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