# Precalc Problems Explained

## By Chris Thiel

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#### Description

A video podcast that show how to solve algebra, trigonometry and other skills needed to enroll in Calculus

Name | Description | Released | Price | ||
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1 | VideoAngles 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 radia | 17 8 2013 | Free | View In iTunes |

2 | VideoBinomial Theorem | Using the Binomial Theorem to expand binomials, Pascal's Rule, and an inductive proof of the Binomial Theorem. Video | 23 4 2013 | Free | View In iTunes |

3 | VideoExp 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 | 21 3 2013 | Free | View In iTunes |

4 | VideoMatrix 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! | 10 3 2013 | Free | View In iTunes |

5 | VideoFancy 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! | 2 12 2011 | Free | View In iTunes |

6 | VideoTrig Substitution & Identities | Using the trig identities for substituting a Pythagorean looking expression. | 22 10 2011 | Free | View In iTunes |

7 | VideoProof of the Trig Sum and Difference Formulas | Proof of the sum and difference formulas for sine, cosine and tangent | 22 10 2011 | Free | View In iTunes |

8 | VideoArithmetic 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. | 20 3 2011 | Free | View In iTunes |

9 | VideoFraction Decomposition, Non-Linear Systems, Symplex Method | Answers to a Chapter 12 Test on Partial Fraction Decomposition, Non Linear Systems and the Simplex Method | 6 12 2010 | Free | View In iTunes |

10 | VideoTrig with Vectors, Complex Numbers, apps (Precalc 6) | Using the law of sines and cosines, we explor vectors, complex numbers and applications (aka "Word problems"). | 4 12 2010 | Free | View In iTunes |

11 | VideoUsing 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 | 29 10 2010 | Free | View In iTunes |

12 | VideoSome 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 | 4 10 2010 | Free | View In iTunes |

13 | VideoInverse 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 | 2 10 2010 | Free | View In iTunes |

14 | VideoHon 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. | 12 9 2010 | Free | View In iTunes |

15 | VideoGraphing 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 | 5 9 2010 | Free | View In iTunes |

16 | VideoRadians and Unit Circle Trig Quiz Answers | Quiz answers on radian angles, unit circle and right triangle trig (Sections 4.1-4.4) | 26 8 2010 | Free | View In iTunes |

17 | VideoBasic Algebra Review | -- | 15 7 2010 | Free | View In iTunes |

18 | VideoCounting 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. | 23 4 2010 | Free | View In iTunes |

19 | VideoFarkle | 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 | 19 4 2010 | Free | View In iTunes |

20 | VideoCounting | Sets, Venn Diagrams, Intersections, Unions, Counting and the Multiplication Rule | 12 4 2010 | Free | View In iTunes |

21 | VideoProof By Induction | An overview and three examples of proving something inductively. | 27 3 2010 | Free | View In iTunes |

22 | VideoPolynomial and Rational Functions | Factoring using synthetic division, and graphing techniques for polynomial and rational functions | 18 2 2010 | Free | View In iTunes |

23 | VideoSarrus 3x3 Determinant Short Cut | A short-cut for finding the determinant of a 3x3 (or higher) matrix | 15 2 2010 | Free | View In iTunes |

23 Items |