(1)寒假结束后,我们迎来了新的学期。来到学校,有的同学脱下了厚厚的棉衣,穿上了薄薄的外套。有的同学还是裹着羽绒服,这真是
(2)秋天来了,接二连三地下了几场雨。奶奶边给小华加衣服,边叮嘱着:“
(3)国庆节,小妹妹不知道从哪里找来一把羽毛扇,轻轻地给自己扇风。妈妈走过去,对她说:“
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