486+65+105+14 | 329﹣142﹣58 | 156+77+123﹣56 | 876﹣(676+48) |
500﹣202 | 639﹣(65+339) | 7200÷25÷4 | 125×(20+8) |
5×(4×27) | 125×27×8×2 | 26×46+54×26 | 125×32 |
32×55+32×44+32 | 32×102 | 32×101﹣32 | 26×187﹣87×26 |
32×98 | 263﹣72﹣28+17 | | |
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