The position of the rational number ab on the number axis ----- A ---c --0-----a --------> Simplify|a-b||a+c|-|b-c||2c| When a=-3 c=-2, find the upper test value

The position of the rational number ab on the number axis ----- A ---c --0-----a --------> Simplify|a-b||a+c|-|b-c||2c| When a=-3 c=-2, find the upper test value

Because a < c <0< b? The leftmost one should be b)
So a-b <0 a+c <0 b-c>0 2C <0
So |a-b||a+c|-|b-c||2c|=b-a-c-b+c-2c=-2a-2c=10

Because a < c <0< b? The leftmost one should be b)
So a-b <0a+c <0 b-c>0 2C <0
So |a-b a+c|-|b-c 2c|=b-a-c-b+c-2c=-2a-2c=10

The position of the rational number ab on the number axis is shown in the figure, then /a+1/+/b/ equals A.-a+b-1 B.a-b-1 C.-a+b+1 D.a+b-1 1-------1----1----1 A0 1B

A
Because a <0,b>0,|a|>1
So a+1<0,b>0
Therefore, the original formula =-a-1+b
Guxuan A

A
Because a <0,b>0,|a|>1
So a+1<0,b>0
So original formula =-a-1+b
Guxuan A