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.

Radians and Unit Circle Trig Quiz Answers

Quiz answers on radian angles, unit circle and right triangle trig (Sections 4.1-4.4)

Intro to Precalc

A broad overview of studying precalculus

Farkle

The old dice game "Farkle" is explained and probabilities are discussed. Special "Thank You"'s go to Br Jack, Br Chris, and all my Christian Brother buddies at Camp La Salle!

See http://www.mathorama.com/farkle.html for a written summary of the rules

Polynomial and Rational Functions

Factoring using synthetic division, and graphing techniques for polynomial and rational functions

Matrix Applications and Pivoting

Find the area of triangles and polygons from their co-ordinates. Use the pivot technique to find a inverse matrix or gaussian elimination or solve a system of equations

Review of Algebra 1 Graphing and Modeling

Line and circle equations and direct and inverse relationship modeling