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Mathematics
OpenStudy (anonymous):

Add the complex expressions, and simplify. (-3.9 + 3.6i) + (7.4 + 6.6i)

OpenStudy (saifoo.khan):

3.5 + 10.2 i

OpenStudy (anonymous):

-3.9 +7.4 +3.6i +6.6i 3.5 + 10.2i

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