College Algebra - Complex Numbers

A series of free College Algebra Video Lessons from UMKC - The University of Missouri-Kansas City.

College Algebra - Lecture 5 - More numbers and Geometry
Lecture 5 - More numbers and Geometry.
In this lecture, we learn about Complex numbers, some area formulas and the Pythagorean theorem.

• Beyond Real Numbers: Complex Numbers [19 min.]
• Some Area Formulas [8 min.]
• The Pythagorean Theorem & A Visual Proof [12 min.]

Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

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