Answer:
Additive inverse property is satisfied in the given question
Step-by-step explanation:
We have been given with two complex numbers x=1+2i and y= -1 -2i
we can clearly see that y is additive inverse of x
Since, additive inverse of the complex number is -(a+ib)
Where a and b are real numbers
Here in given numbers a=1 and b=2i
sum of number and its additive inverse is zero.