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77-43-11= 60-6+34= 57-14-17=
44+52-30= 63+25-37= 59-1+2=
75+( )="8135-(" )=14 ( )+21=74
( )-38=25 ( )-7="145+(" )=99
( )-21=10 ( )+51=62 ( )+32=96
33-( )=16 ( )+28=49 ( )+10=46
( )-11=53 ( )-3="3048-(" )=6
( )+25="4497-(" )=18 ( )-7=18
( )+23="2694-(" )="297-(" )=69
23-( )="131-(" )="057-(" )=48
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
