(1)1248÷[(29+19)×2] (2)285-(15+20×3)
(3)150-75÷25×3+1062 (4)(460-385)+(1800÷24)
(5)62×[(580-445)×9]-245 (6)(1728+1926)÷(346-328)
(7)2745÷(766-47×15) (8)32074÷79×15+68×12
(9)10000-(56×152+734) (10)7656÷88-(385-298)
(11)9405÷45+921÷3×16 (12)34×160-16224÷24
(13)64×36+198-1236÷12 (14)9405÷(921-73×12)+165
(15)8675-(103×32+472) (16)351+1944÷27×30-678
(17)32×12÷48+780÷13 (18)(31195÷85-1876÷28)×26
(19)8000-5454÷54×(96-38) (20)7553÷[(500-175)÷25]×26
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