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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 ...
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Mathematician Solves Algebra's Oldest Problem

A mathematician has uncovered a way of answering some of algebra's oldest problems. University of New South Wales Honorary Professor Norman Wildberger, has revealed a potentially game-changing ...