What is the additive inverse of the complex number 13-2

-13 + j*2

Step-by-step explanation:

The additive inverse of a complex number x = a + j*b

is a number y, such that

x + y = 0

This means that

y = - x = - a - j*b

Therefore

The additive inverse of 13 - j*2 is equal to

- (13 - j*2) = - 13 + j*2