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...
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Precalc Problems Explained
Discuss precalculus problems
Episodes
20 of 25 episodesExp 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 gra...
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 ma...
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...
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.
Arithmetic Sequnces
Discuss precalculus problems
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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...
Trig with Vectors, Complex Numbers, apps (Precalc 6)
Using the law of sines and cosines, we explor vectors, complex numbers and applications (aka "Word problems").
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Using Sum & Difference Formulas
Here we find the trig functions of other angles based on the sum and difference of two angles, the double or half angle. We will prove these...
Some more Trig Word Problems (4.8, 4.R)
Here we use the trigonometry from our first Trig Chapter (4 in our textbook) to review how sine, cosine and tangent are used to solve word p...
Inverse Trig Functions and Trig Word Problems
Use the inverse trig functions to find unknown angles and use everything you know about sine cosine and tangent to solve word problems
Hon Algebra 2 Trig Test 1 answers
Some are getting ready for calculus by taking a Honors Algebra 2 with Trigonometry. Here are topics from Chapter 1 of the Sullivan text that...
Graphing Trig Functions (4.1-4.6)
Here we have basic angles in radians, and graphing the trig functions of these angles. These functions, with their ability to transform wave...
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
Basic Algebra Review
Discuss precalculus problems
Counting Applications
We consider how to put together our counting techniques to find out the probability of a royal flush, and figure out how many ways to give f...
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...
Binomial Theorem
Using the Binomial Theorem to expand binomials, Pascal's Rule, and an inductive proof of the Binomial Theorem. Video