9
AssignmentMultiple Choice

Performing Operations with Complex Numbers

Question 9 • MO-Algebra II A-CR

What is the additive inverse of –2 + 8i?

Answer
A
2 + 8i
B
-2- 8i
C
2 - 8i
D
-2 + 8i

Explanation

The additive inverse is the number that adds to the original number to give 0. Negate both parts of −2 + 8i: the opposite of −2 is 2, and the opposite of 8i is −8i. So the additive inverse is 2 − 8i, choice C.

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