Category Archives: Trigonometry

space shuttle differentiation

Posted on April 29, 2010 by eric

This pencast includes another practical example of the usefulness of calculus. This particular problem involves a camera that is tracking the ascent of the space shuttle, and introduces trigonometric differentiation. space shuttle differentiation brought to you by Livescribe

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log, inv. tan. differntiation

Posted on April 29, 2010 by eric

In this pencast, I review logarithmic function differentiation, and introduce methods to differentiate inverse-tangent functions. log, inv. tan. differntiationbrought to you by Livescribe

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logarithmic differentiation pt.2

Posted on April 29, 2010 by eric

In previous pencasts, I explore the usefulness of logarithmic differentiation. What if you come across an equation that not only involves logarithms, but trigonometric functions? In this pencast, I go over ways to solve these kinds of problems. logarithmic differentiation … Continue reading →

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Trigonometric Limits

Posted on November 18, 2009 by eric

You may think you have the topic of limits covered… But can you handle trigonometric limits? In this pencast I find the limit of a trigonometric function. You may think that they are periodic, and therefore don’t have any limit … Continue reading →

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Find Solutions to Sine Functions

Posted on November 18, 2009 by eric

In this problem I find the derivative of more complicated trigonometric functions and use this information to solve a unique problem. find solns sine funcbrought to you by Livescribe

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Trigonometric Composite Functions

Posted on November 18, 2009 by eric

Composite functions can be difficult to understand. Things get more complex when you throw trigonometric functions into the equation-situation (ha.) In this pencast I find the derivative of such a function. trig composite funcbrought to you by Livescribe

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Finding Inflection Points

Posted on October 14, 2009 by eric

Trigonometric functions have plenty of inflection points, local maximums and local minimums. Why? Because they’re periodic — they repeat. Selecting a particular interval gives you the opportunity to find a limited number of inflection points. inflection pts over intbrought to … Continue reading →

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Conceptualizing Circular Motion

Posted on September 17, 2009 by eric

Circular motion can be difficult to describe. The basic concept is simple — an object moving around a circle! The difficulty comes in when you start dealing with the math: sine functions, right triangles and velocity. In this problem, we … Continue reading →

Posted in Distance and Circles, Pencast, Plotting, Graphs, Trigonometry | Tagged , , | 3 Comments

Find the Center and Radius of a Circle

Posted on September 16, 2009 by eric

Find the center and radius of a circle. If you remember the Pythagorean Theorem, you’re almost there. Circles and right triangles go hand-in-hand when you’re graphing circles. Ultimately, grpaphing circles involves just a few transformations, starting from the standard equation … Continue reading →

Posted in Distance and Circles, Pencast, Plotting, Graphs, Trigonometry | Tagged , , | 2 Comments