asked 55.9k views
5 votes
For i = \-1, what is the sum (7+3i) + (-8+9i) ?

1 Answer

6 votes

add the real parts together and then the imaginary parts together

7 + -8 = -1

3 + 9 = 12

-1 + 12 i

answered
User Lu Mike
by
8.8k points
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