If ab is the opposite number and cd is the reciprocal number, m is the rational number with the smallest absolute value, then 2a+2b-3cd+m =()

If ab is the opposite number and cd is the reciprocal number, m is the rational number with the smallest absolute value, then 2a+2b-3cd+m =()

A+b=0
Cd =1
M=0
So
2A+2b-3cd+m=(-3)
0-3+0=-3

Given that the rational number a is equal to its opposite number and the rational number b is equal to its reciprocal number, then a + b =?

By:
A =-a
B =1 in b
Therefore:
2A=0
B2=1
A =0
B=1 or -1
Therefore:
A+b=0+1=1
A + b =0-1=-1
I am very happy to answer for you, I wish you study progress! Moment forever 523 answers for you ~~
If you agree with my answer, please click the [Select satisfactory answer] button below, thank you ~~
If you have any other questions, please ask me for help. It's not easy to answer. Please understand.