班级 | 四(1) | 四(2) | 四(3) | 四(4) |
男生 | 28 | 30 | 25 | 30 |
女生 | 20 | 20 | 20 | 25 |
(1)请根据上表数据完成统计图.
某校四年级男女同学参加兴趣小组人数统计图
(2)( )班参加兴趣小组的人数最多,( )班最少.
(3)提出一个数学问题,并解答.
同类型试题
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
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