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26 October, 06:24

For i = / -1, what is the sum (7+3i) + (-8+9i) ?

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  1. 26 October, 09:32
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    add the real parts together and then the imaginary parts together

    7 + - 8 = - 1

    3 + 9 = 12

    -1 + 12 i
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