从小红家到学校两条路哪条最近?
⑵一条路已经修了28米,还剩7米没有修,这条路一共长多少米?
⑶一根钢管第一次用去47米,第二次用去26米,两次一共用去多少米?
⑷一只铅笔用去7厘米,断了2厘米,还剩8厘米,这只铅笔原来长多少厘米?
⑸有两根木棍,一根有34厘米,另一根28厘米,相连接处用了10厘米,将两根木棍捆绑后长多少厘米?
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