6
AssignmentMultiple Choice

Unit Test

Question 6 • Precalculus

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 make 0. Negate both parts of −2 + 8i, giving 2 − 8i; indeed, (−2 + 8i) + (2 − 8i) = 0. So the additive inverse is 2 − 8i.

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