8-7= 1+9= 6+3= 9-4=
10+6= 15-10= 4-4= 6+5=
7+9= 10-5= 0+6= 8-0=
8+3= 6+6= 6+10= 5+5=
4+5= 7-4= 4+8= 13-10=
2+2+2= 15-5-7= 10-4+7=
6+4+6= 16-10-3= 8+8-10=
6+3+5= 17-7-3= 8-3+6= 4+4+4=
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