瞧,孩子们在山林田野谱写出了动人的生活乐(lè yuè)章!在山林搂(lǒu lōu)树叶,huì()拢在一起讲趣闻;让土gǎng()抓泥捏成碾磨(mó mò);到旷野冒着dú cì()伤害的危险sōu jí()树叶标本,一一陈列在教室里……这一幕幕成了儿时最美的jì yì()。
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