Geometry - Trigonometric Ratios

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Bring up the terms sine, cosine, and tangent and most students immediately get intimidated. But it doesn't need to be this way as these are simple trigonometric ratios that anyone can calculate. It's just a matter of remembering what each ratio is and plugging the measurements into the ratio. In today's free Geometry video, Professor Edward Burger explains these Trigonometric Ratios so all students can be fearless when encountering any of these terms. He even walks you through the steps of using a calculator for each, which can be helpful when the ratio is only a portion of a problem you are working. Today's video should help everyone realize that instead of being intimidating, sine, cosine, and tangent are incredibly helpful in determining different unknown measurements of triangles.

With 4 lectures on today's Trigonometric Ratios video, don't forget to click the forward button to the left of the time stamp to move to the next lecture and watch them all.


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Pre-Calculus: Finding the Magnitude and Direction of a Vector from Official Thinkwell Blog - Articles and Free Videos for Math, Science, and more on March 1, 2011 3:55 PM

In today's free Pre-calculus video, we're going to take a look at vectors that are given to us in standard form and see if we can figure out both the magnitude and in some sense the direction, which is given by what's called the direction angle. Read More

Determining Whether a Trig Function is Odd, Even, or Neither from Official Thinkwell Blog - Articles and Free Videos for Math, Science, and more on March 3, 2011 2:46 PM

We've explored trigonometric functions in the past, but today's video is a bit different. While we can easily determine if a function is odd or even by looking at its graph, Professor Edward Burger also shows how to look at the function to come to the... Read More

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About this Entry

This page contains a single entry by April Stockwell published on December 8, 2010 2:02 PM.

Geometry - Isosceles and Equilateral Triangles was the previous entry in this blog.

Geometry - Vectors is the next entry in this blog.

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