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Level 279

Complex Numbers


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7i
Simplify: √(-49) =
i√(5)
Simplify: √(-5) =
i
√(-1) =
5 + 9i
(3 + 2i) + (2 + 7i) =
4i/3
-4/3i =
14 -8i
(4 -5i) - (-10 + 3i) =
8+11i
2 (3 +2i) +(2 + 7i) =
3 / 1-2i =
3 + 6i / 5