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Adding and Subtracting Complex Numbers - Problem 2
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
When adding or subtracting complex numbers, we simply combine the real parts and combine the imaginary parts. It's generally intuitive- most students can do these problems without any formal instruction. Be sure to be careful with +, - signs. As a convention, we write the result in a + bi form, which means the real part followed by the imaginary part.
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