Imaginary and complex numbers | Algebra II | Khan Academy (English)

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Imaginary and complex numbers | Algebra II | Khan Academy
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Lecture Description of this above Topic:

Lecture 1: Introduction to complex numbers

Lecture 2: Algebra II: Imaginary and complex numbers

Lecture 3: Calculating i raised to arbitrary exponents

Lecture 4: Adding complex numbers

Lecture 5: Dividing complex numbers

Lecture 6: Multiplying complex numbers

Lecture 7: Complex conjugates example

Lecture 8: Example: Complex roots for a quadratic

Lecture 9: Plotting complex numbers on the complex plane

Lecture 10: i as the principal root of -1 (a little technical)

Lecture 11: Imaginary roots of negative numbers

Lecture 12: Subtracting complex numbers

Lecture 13: Introduction to i and imaginary numbers

Lecture 14: Absolute value of a complex number