⑴487﹣187﹣139﹣61 | ⑵38×101 | ⑶1825﹣(625+90) | ⑷12×29+12 |
⑸58×197+58×3 | ⑹125×(80+8) | ⑺101×56﹣56 | ⑻79×34+34 |
⑼125×48 | ⑽(80+8)×25 | ⑾32×(200+3) | ⑿38×39+38 |
⒀94+38+106+62 | ⒁125×15×8 | ⒂25×32×125 | ⒃125÷25×8 |
⒄125×48 | ⒅989﹣186﹣14 | ⒆4600÷25÷4 | ⒇136×101﹣136 |
(21)32×37+47×37+21×37 | (22)99×77+77 | (23)99×8 | (24)78×37﹣37×68 |
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