打头阵 挑大梁 破天荒 栽跟头 敲边鼓 开绿灯 碰钉子 占上风
(1)今天我作业完成得质量高,妈妈给我
(2)考试的时候我们一定要认真审题,否则就容易
(3)今年艺术节表演,我们班的节目由多才多艺的莉莉
(4)在辩论赛中,他凭借丰富的经验和技巧,始终
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