布谷鸟跳了4次,4×4=16,像布谷鸟一样继续往前跳,并标出数.
(1)从图上读出:
1×4=
3×4=
5×4=
7×4=
9×4=
(2)布谷鸟跳到32,32=8×4.在图上读出:(按行作)
4= | 8= | 16= |
28= | 36= | 12= |
20= | 24= | 40= |
布谷鸟回到0点.它累了,它没有再跳:0×4=0
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