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Algebra 2 11.07j - Trig Tables
How we used to find trigonometric values before we had calculators. We looked them up in printed tables. Hipparchus, the "Father of Trigonometry" was the first person to compute and use trigonometric tables. Although we don't know exactly how he did it, we can speculate on some techniques and theorems he may have used. Modern calculators use different methods involving more advanced theory to produce very fast and accurate results.
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Time : 3 min 32
Added : 30/09/11 02:09
Tags: homeschool math online / homeschool math algebra / homeschooling
Algebra 2 11.08a - Sine and Cosine on the Unit Circle
Understanding the sine and cosine of an angle on the unit circle. In this video, I am trying to help the students get inside the head of an engineer or mathematician, so that they can understand some different and useful ways of thinking about the meaning of sin(theta) and cos(theta) in light of angles on the unit circle. From the introductory trigonometry lessons in the Algebra 2 course by Derek Owens. More info on this course and others can be found at www.DerekOwens.com and http
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Time : 8 min 58
Added : 03/10/11 03:53
Tags: algebra 2 homeschool / homeschool math online / homeschool math video
Algebra 2 11.07i - Examples 7 - 8
Two examples that demonstrate finding an angle in a right triangle by using inverse sine, inverse cosine, and inverse tangent, and some comments on the accuracy of the answers given by the calculator. From the Algebra 2 trigonometry lessons by Derek Owens. More info on this and other courses can be found at www.DerekOwens.com and http
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Time : 7 min
Added : 30/09/11 02:00
Tags: homeschool math algebra / homeschool math online / homeschooling
Algebra 2 11.01a - Introduction
The first video from Chapter 11, which is the first chapter on Trigonometry. From the Algebra 2 course by Derek Owens. More details about the course can be found at www.DerekOwens.com and http All of the videos for this chapter will be uploaded with ultra-high quality video and audio. I have recently figured out some video encoding techniques (please, please don't ask) that allow maximum video and audio quality to be preserved through the process of uploading and encoding on YouTube. I hope you...
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Time : 8 min 40
Added : 06/09/11 23:48
Tags: algebra 2 homeschool / homeschool math online / homeschool math video
Algebra 2 11.07d - Sine and Cosine for Other Angles
This video continues the discussion from the previous video. Some comments on the sine and cosine values for angles *other* than 30, 45, and 60 degrees. In a trigonometry class, students should not be left with the mistaken impression that 30, 45, and 60 degree angles are the only angles encountered. This video discusses the basic trig concepts in light of all angles, large and small. From the trigonometry lessons which are part of the Algebra 2 course by Derek Owens. More info is available at...
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Time : 5 min 35
Added : 28/09/11 20:21
Tags: algebra 2 homeschool / homeschool math online / homeschool math video
Algebra 2 11.10b - Example 2
A non-trivial trigonometry problem. This example problem deals with the angle of a line of sight to an aircraft, and how it changes as the aircraft approaches. From the Algebra 2 course by Derek Owens. More info on this course and others can be found at www.DerekOwens.com and http
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Time : 7 min 31
Added : 08/10/11 02:45
Tags: algebra 2 homeschool / homeschool math online / homeschooling
Algebra 2 11.10e - Practice Problem 1
Another non-trivial trigonometry problem. This example involves navigational headings and distances, and two different solutions are shown. From the Algebra 2 course by Derek Owens. More info on this course and others is available at www.DerekOwens.com and http
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Time : 10 min 55
Added : 08/10/11 23:47
Tags: homeschool math algebra / homeschool math online / homeschooling
Algebra 2 11.08b - Sine and Cosine on the Unit Circle
A continuation from the previous video. How to interpret the meaning of sin(theta) and cos(theta) on the unit circle, with some examples involving specific angles, and some comments on large and small angles. From the Algebra 2 course by Derek Owens. More info is available at www.DerekOwens.com and http
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Time : 4 min 23
Added : 03/10/11 04:00
Tags: algebra 2 homeschool / homeschool math online / homeschool math video
Algebra 2 11.07g - Inverse Sine and Inverse Cosine
The concepts of inverse sine and inverse cosine are carefully explained, the notation is discussed and explained, and some simple examples are worked to illustrate the concepts. From the Algebra 2 trigonometry lessons by Derek Owens. More info on this and other courses can be found at www.DerekOwens.com and http
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Time : 6 min 54
Added : 30/09/11 01:33
Tags: homeschool math algebra / homeschool math online / homeschooling
Algebra 2 11.09h - Examples 11 - 13
Three real world example problems involving basic trig ratios (two of these examples use sine and one uses inverse sine). From the Algebra 2 course by Derek Owens. More info about this course and others may be found at www.DerekOwens.com and http
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Time : 7 min 13
Added : 07/10/11 01:09
Tags: algebra 2 homeschool / homeschool math online / homeschooling