Adding and Subtracting Complex Numbers
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Complex numbers add and subtract by combining real parts with real parts and imaginary parts with imaginary parts.
Show
(3 + 2i) + (1 − 5i) = 4 − 3i — the same like-terms discipline that collects polynomials, with i marking the like kind. Nothing crosses the aisle.
Builds on
- Nothing — this is a starting point.
Unlocks
- Nothing yet depends on this.