Question

a=1 b=-1.5 c=-2 化简：A减B的绝对值减B减C的绝对值减A减C的绝对值

Answer 1

∣a-b∣-∣b-c∣-∣a-c∣

=a-b-(b-c)-(a-c)

=a-b-b+c-a+c

=-2b+2c

也可算出结果：

=∣1-(-1.5)∣-∣-1.5-(-2)∣-∣1-(-2)∣

=1+1.5-(-1.5+2)-(1+2)

=1+1.5+1.5-2-1-2

=∣2.5∣-∣0.5∣-∣3∣

=2.5-0.5-3

=-1