## Saturday, August 17, 2013 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

## Thursday, March 21, 2013

### Exp and Log Functions

Video at Archive.org 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

## Thursday, March 7, 2013

### 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!

## Friday, December 2, 2011

### 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!

## Saturday, October 22, 2011

### Proof of the Trig Sum and Difference Formulas Proof of the sum and difference formulas for sine, cosine and tangent

### Trig Substitution & Identities Using the trig identities for substituting a Pythagorean looking expression.

## Sunday, March 20, 2011

### Arithmetic Sequences An Arithmetic Sequence is a pattern where each element changes by adding a constant. Here are examples, as well as the proof the formula for a partial sum of an arithmetic sequence.