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10 + 5 = 2 + 10 = 19 - 7 = 15 + 0 =
14 - 2 = 11 + 8 = 10 - 8 = 9 - 9 =
2 + 13 = 13 - 2 = 3 + 7 = 19 - 7 =
5 + 10 = 10 - 3 = 10 + 7 = 10 + 2 =
11 - 1 + 5 = 13 + 3- 6 = 4 + 6 + 8 = 13 - 1 - 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
