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Khan Academy Simplifying
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4:01
Khan Academy
Sal Khan,Monterey Institute for Technology and Education
Khan Academy
Through a guided example with 7 - 5i, this video explains how to find the conjugate of a complex number, which is simply changing the sign of the imaginary part. Multiplying a complex number by its conjugate results in a real number. This is useful for simplifying complex numbers and is similar to the difference of squares.
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