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5×3= 5×4= 14÷7= 4×4= 4×8 = 40÷8 = 5×4 =
40÷8= 5×2= 40÷5= 3×9= 12÷2 = 9×2= 4×7=
3×4= 3×8= 7÷7= 36÷4= 9×3 = 36－6= 8÷2 =
8×3= 15÷3= 18÷3= 62-8= 4÷4 = 3×7= 32÷8 =
14+32= 20+5= 8×2= 35÷7= 5×7 = 20÷5 = 15÷3 =
3÷1= 24÷4= 27÷9= 5×1= 8÷2= 2×9= 9÷9 =
12÷3= 4×9= 45÷9= 32÷4= 0×8= 20÷5= 8÷2=
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
