学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.64
所属科目:小学英语
中英文互译。                                       
(1)玩……___________________
(2)放风筝___________________
(3)去滑冰___________________
(4)堆雪人___________________
(5)种树_____________________
(6)in January_________________
(7) December 21st______________
(8)draw pictures_______________
(9)cook dinner_________________
(10)read a book________________
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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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