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40+2= 70+3= 10+8= 80+0= 40+5= 3+90=
10+6= 30+2= 50+9= 9+80= 1+10= 8+80=
20+1= 20+3= 0+10= 6+40= 6+50= 20+4=
20+2= 6+60= 90+2= 80+4= 90+4= 3+80=
60+4= 60+1= 2+60= 30+4= 40+7= 8+20=
57–7= 62–60= 52–2= 18–8= 86–6= 68–8=
65–5= 55–50= 93–90= 35–5= 45–40= 79–70=
38–30= 27–20= 57–7= 37–7= 100–30= 66–6=
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
