What is the difference between imanginary numbers and complex numbers

The video tutorial introduces the concept of imaginary units, represented by 'i', which is the square root of negative one. It explains imaginary numbers as multiples of 'i' with real coefficients, such as 5i. The tutorial then covers complex numbers, which are composed of a real part 'a' and an imaginary part 'bi'. The importance of writing complex numbers in the form a + bi is emphasized, along with examples and clarifications on how to handle subtraction in this context.

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