(1)运动会上,正是因为同学们的齐心协力,我们班才获得了冠军,真应了那句俗语:“人心齐,
(2)爸爸在工作上遇到了难题,自己想了很久也没想到解决的办法,和同事一起商量后,问题便顺利解决了。爸爸不禁感叹道:“‘一个篱笆三个桩,
(3)有了问题就要多商量,俗话说得好:“三个臭皮匠,
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