(1)0.38+(﹣1.68)﹣(﹣1.68)﹣0.38﹣1
(2)(+2)﹣(+2)+(﹣5)﹣(+4);
(3)(﹣35)×(﹣7)
(4)(+3)×(3﹣7)×÷
(5)﹣8×(﹣12)×0.125×(﹣)÷1
(6)﹣2.5×7.3+2.5×(﹣2.4)﹣2.5×(﹣1.7)
(7)(1﹣)2﹣[(1)÷(﹣1)]×(﹣1)3
(8)﹣32﹣[(﹣2)3×(﹣4)÷(﹣)].
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