在莱yīn( )河畔,贝多芬为一位mò shēng ( )的máng rén( )姑娘即兴创作乐《月光曲》。当他按动 qín jiàn( )时,姑娘的眼前仿佛出现了一幅画面;月亮升起来了,霎(shà chà)时间,微波lín lín( )的海面上洒满了银光;忽然,大风来了,一个个巨浪涌向岸边……
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