学进去-教育应平等而普惠
试题
类型:其他
难度系数:0.65
所属科目:小学英语
A. a place that people live on it.
B. We learn the small can help the great from it.
C. not easy
D. day and night
E. land that covered(覆盖) with trees
F. fall or come down
G. some other
H. pass away
I. the king of the animals
J. sea

1.forest (      )
2.another (      )
3.crash (      )
4.disappear (      )
5.all day long       (      )
6.lion (      )
7.difficult (      )
8.earth       (      )
9.ocean (      )
10.The Lion and the Mouse (      )
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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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