学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.94
所属科目:小学英语
猜一猜, 将正确的词语写在横线上。
1.You take it on a rainy day. If you forgot it, you will get wet. It is an_________
2.This is a season. It's warm and rainy. The flowers bloom. It is________.
3.It's a man. It makes with snow. It's a________.
4.It's a kind of vegetables. It's round. When you cut it. It can hurt your eyes. It's an________
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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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