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To form the additive inverse, negate all parts of the complex number

→ 8 + 3i → -8 - 3i

The sum of a number and its additive inverse is 0:

(8 + 3i) + (-8 - 3i) = (8 + -8) + (3 + -3)i = (8 - 8) + (3 - 3)i = 0 + 0i = 0.

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Just change every plus to minus, and every minus to plus. In this case, if you mean 8 + 3i, change it to -8 - 3i.As a check, the original number, plus its additive inverse, must have a sum of zero.

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9y ago
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Q: What is the additive inverse of the complex number 8 plus 3i?
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