学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.85
所属科目:小学语文
为动物找家,下列有错误的一项是(       
A.猪棚                           鸟巢                           龙潭                           马圈
B.鸟窝                           鱼塘                           鼠洞                           虎穴
C.蛇洞                           牛棚                           鼠窝                           马厩
D.牛圈                           鱼池                           雀巢                           狗窝
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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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