
(1)右边刻度3处挂3个棋子,左边刻度3处应挂(
(2)右边刻度5处挂2个棋子,左边刻度2处应挂(
(3)右边刻度4处挂3个棋子,现在要在左边挂3个棋子,应挂在刻度(
左边刻度 | 1 | 2 | 3 | 4 |
挂的棋子数 | ( | ( | ( | ( |
乘积 | ( | ( | ( | ( |
(4)要保持杠杆平衡,在一侧刻度数和所挂棋子数一定的情况下,另一侧刻度数和所挂的棋子数成(

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

