Precalc Problems Explained Chris Thiel
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A video podcast that show how to solve algebra, trigonometry and other skills needed to enroll in Calculus
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Angles and Radians
Find out how to convert fractions of a degree with Degrees, minutes and seconds, and enter the wonderful world of the radian. I have a some examples of how to convert from degrees to radians and back again, as well as angular and linear speed using radians: Video Link
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Exp and Log Functions
Video at Archive.org Video at YouTube Solving for an unknown in the exponent requires logarithms! 19 Problems are explained that involve graphing and the properties of exponents and logarithms, as well using your graphing calculator
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Matrix Determinants
Matrix Determinant Video Use Cramer's Rule to solve a system of equations with Leinitz and Sarrus' method of finding the determinate of a matrix!
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Fancy Trig Equations
To solve for an unknown angle we will use all sorts of clever tricks, employing the trig formulas and identities in weird and wonderful ways!
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Proof of the Trig Sum and Difference Formulas
Proof of the sum and difference formulas for sine, cosine and tangent
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Trig Substitution & Identities
Using the trig identities for substituting a Pythagorean looking expression.