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Pre-calculus - Learn to multiply radicals with the imaginary unit i, root(8) * root(-7)

In this math tutorial I will show you how to multiply complex numbers. Complex numbers come in the form of a +bi. Multiplying complex numbers carry some of the same properties as multiplying ...
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Pre-calculus - simplifying a rational expression with an imaginary root as the denominator

In this video series, I show you how to simplify rational complex numbers. We do this by eliminating dividing by an imaginary number. We can either do this by multiplying by i, which produces -1, or ...