0.2×100= 6.3÷10= 1.8+8.2=
1-0.08= 9.6+3.04= 25.2-5.2=
3.3+7.7= 8.8-1.5-6.5= 9.8+0.3+9.7=
1-0.25+0.75= 7.6×10÷100= 8.2-3.1+0.9=
1.2+0.18-1.2+0.18= 0.36+0.9+0.64+8.1=
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