One day Mr. Li and Mr. King go to London to meet a friend. They don’t know much about London. They can’t s1. much English either. They can’t find their friends h2.. They see a man n3. a bus stop. He is waiting f4. a bus. They go up to him and a5. the way. The man smiles but says nothing. Then he puts his hand into his pockets and takes out a b6.. He o7. the book and reads, “I’m sorry. I don’t speak English.”The two m8. are very worried. They don’t know what to do. At that time they see a policeman. F9., they find their friend’s home with his h10..
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