1.去年夏天,我和妈妈去西湖游玩,那里的荷塘景色真是美极了,我不禁高声吟诵起宋朝诗人杨万里的诗句:接天莲叶无穷碧,
2.“四海无闲田,
3.《要是你在野外迷了路》向我们介绍了几种指南针,它们分别是
4.《太空生活趣事多》一文中为了方便航天员在舱体中活动,舱壁上安装了很多
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