男生 | 女生 | ||||||
12 | 18 | 32 | 19 | 8 | 23 | 33 | 24 |
6 | 15 | 26 | 3 | 25 | 13 | 22 | 28 |
(1)补充完成下面的统计表。
10首以下 | 10~20首 | 21~30首 | 31首及以上 | |
男生 | 1 | 1 | ||
女生 | 1 | 1 |
(2)男生背诵古诗数量在
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