a. The positions of B, C and the three numbers on the number axis are shown in the figure, simplifying the absolute value of a / A + the absolute value of B / B + the absolute value of C / C B is to the left of 0, a is smaller than B, and C is to the right of 0

a. The positions of B, C and the three numbers on the number axis are shown in the figure, simplifying the absolute value of a / A + the absolute value of B / B + the absolute value of C / C B is to the left of 0, a is smaller than B, and C is to the right of 0

The absolute value of a / A + the absolute value of B / B + the absolute value of C / C
=-a/a +(-b)/b +c/c
=-1-1=1
=-1