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Summary of Chapter 3 | Complex Number | Use of Complex Number | June 2017


WHAT IS COMPLEX NUMBER? WHEN ARE WE GOING TO APPLY IT? 

In learning about complex numbers, students will have a question "when are we going to use the complex number in real life"


The first answer to this question when we encounter the following math problem.
x = √ - 1 
By google search when we search for square root - 1, it will give square root(-1) = i. 
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