学进去-教育应平等而普惠
试题
类型:改错
难度系数:0.40
所属科目:小学英语
下列每题都有一个错,请划出并在横线上改正。
1. Because he was hungry, so he ate two bowls of rice.  __________
2. Which do you like better, singing and dancing?  __________
3. Alice is not slim but also beautiful.  __________
4. Both Mom and also Dad are angry with my brother.  __________
5. Though she is little, but she often helps others.  __________
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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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