Precalc Problems Explained

Episodes

1. 25

   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

   Aug 18, 2013
2. 24

   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

   Mar 21, 2013
3. 23

   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!

   Mar 7, 2013
4. 22

   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!

   Dec 2, 2011
5. 21

   Proof of the Trig Sum and Difference Formulas

   Proof of the sum and difference formulas for sine, cosine and tangent

   Oct 22, 2011
6. 20

   Trig Substitution & Identities

   Using the trig identities for substituting a Pythagorean looking expression.

   Oct 22, 2011
7. 19

   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.

   Mar 20, 2011
8. 18

   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 formulas in a different video

   Oct 30, 2010
9. 17

   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 problems

   Oct 4, 2010
10. 16

    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

    Oct 2, 2010
11. 15

    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 are part of any Honors Algebra 2 class.

    Sep 7, 2010
12. 14

    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 waves with different periods and amplitudes, can be used to mathematically express all sorts of waves we find in real life. These ideas are from Sections 4.1 to...

    Sep 4, 2010
13. 13

    Radians and Unit Circle Trig Quiz Answers

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

    Aug 27, 2010
14. 12

    Intro to Precalc

    A broad overview of studying precalculus

    Jul 19, 2010
15. 11

    Basic Algebra Review

    Jul 16, 2010
16. 10

    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 five fish to three dolphins using the partition technique.

    Apr 24, 2010
17. 9

    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

    Apr 20, 2010
18. 8

    Binomial Theorem

    Using the Binomial Theorem to expand binomials, Pascal's Rule, and an inductive proof of the Binomial Theorem. Video

    Apr 13, 2010
19. 7

    Counting

    Sets, Venn Diagrams, Intersections, Unions, Counting and the Multiplication Rule

    Apr 13, 2010
20. 6

    Proof By Induction

    An overview and three examples of proving something inductively.

    Mar 27, 2010
21. 5

    Fraction Decomposition, Non-Linear Systems, Symplex Method

    Answers to a Chapter 12 Test on Partial Fraction Decomposition, Non Linear Systems and the Simplex Method

    Mar 8, 2010
22. 4

    Polynomial and Rational Functions

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

    Feb 18, 2010
23. 3

    Sarrus 3x3 Determinant Short Cut

    A short-cut for finding the determinant of a 3x3 (or higher) matrix

    Feb 16, 2010