2.5+3.2= 9.8-4.8= 1.29-0.18=
2.26+0.9= 8-0.82= 0.75+0.25=
1.4+0.5= 10.8-8.5= 6.4+1.07=
0.55+5.5= 1.05-0.09= 0.6+6.45=
4.13-1.8= 0.46+0.54= 1.07-0.47=
1.28+0.22= 2.4-1.9= 0.06+1.5=
2.5-0.9= 4.2+0.53=
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