## Saturday, August 17, 2013

### 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

## Thursday, March 21, 2013

### 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

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

## 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!

Use Cramer's Rule to solve a system of equations with Leinitz and Sarrus' method of finding the determinate of a matrix!

Labels:
cramer,
determinant,
linear algebra,
matrix,
precalc,
sarrus

## 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!

Labels:
angles,
arcos,
arcsin,
inverse trig,
trig,
trig equations,
trig identities

## Saturday, October 22, 2011

### Trig Substitution & Identities

Labels:
calculus,
cos,
identities,
identity,
precalculus,
pythagorean,
sec,
sin,
tan,
trig,
trigonometry

## 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.

Labels:
arithmetic sequences,
partial sum,
precalc,
sequences

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