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Cosine Videos

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Graphing Sine and Cosine Functions with Phase Shifts

Graphing Sine and Cosine Functions with Phase Shifts

from 5min: Thinkwell Studio Videos on August 13, 2009
Duration: 440
Professor Edward Burger explains graphing sine and cosine functions with phase shifts in this video from Thinkwell's online Algebra series.
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Graphing Sine or Cosine Functions with Different Coefficients

Graphing Sine or Cosine Functions with Different Coefficients

from 5min: Thinkwell Studio Videos on August 13, 2009
Duration: 740
Professor Edward Burger explains graphing sine or cosine functions with different coefficients in this video from Thinkwell's online Algebra series.
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An Introduction to the Graphs of Sine and Cosine Functions

An Introduction to the Graphs of Sine and Cosine Functions

from 5min: Thinkwell Studio Videos on August 13, 2009
Duration: 613
Professor Edward Burger explains an introduction to the graphs of sine and cosine functions in this video from Thinkwell's online Algebra series.
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Solving Word Problems Involving Sine or Cosine Functions

Solving Word Problems Involving Sine or Cosine Functions

from 5min: Thinkwell Studio Videos on August 13, 2009
Duration: 264
Professor Edward Burger explains solving word problems involving sine or cosine functions in this video from Thinkwell's online Algebra series.
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Sine and Cosine for a Fixed Point in Space is a Circle

Sine and Cosine for a Fixed Point in Space is a Circle

from horeshb on April 29, 2009
Duration: 31
When a position in space is fixed, the sine and cosine functions circle that point, the angle depending on the exact values of x, y, and z. Sines and cosines have to do with circles. By fixing x, y, and z, the circle stays fixed. What direction the line in space points to is arbitrary. The line in yellow is the input for the The length of the line in space is the amplitude.
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Sines in Many Directions

Sines in Many Directions

from horeshb on April 29, 2009
Duration: 31
When the input never moves in space, the output of oscillating points is easier to understand. Each of these sets of events starts out pointing in a different direction. Yet the x, y, and z values of the input is never altered. This is why you can spot the spatial origin, the point in the center of all the moving points. It would be simple enough to shift these arbitrary oscillators around precisely the origin to arbitrary oscillators around arbitrary points - just add in an arbitrary value as a last step.
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Sines and Cosines Over Long Periods of Time in Spacetime

Sines and Cosines Over Long Periods of Time in Spacetime

from BITS on April 29, 2009
Duration: 31
Over long periods of time with smaller changes in space, sine and cosine functions make spirals. In classical physics, the amount of change in time measured in the same units as space vastly exceeds changes in space. In other words, relativistic velocities are low. In these animations, time changes by 100 while changes in space are only 20.
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Math Help - Geometry - Sine, Cosine, and Tangent Ratios

Math Help - Geometry - Sine, Cosine, and Tangent Ratios

from D-Ratio.com on October 31, 2007
Duration: 214
To access the complete lesson on this topic, go to http://www.yourteacher.com. Students learn to find the missing side lengths and the missing angle measures in right triangles using sine, cosine, and tangent. Note that a scientific or graphing calculator is required for the problems in this lesson.
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Math Help - Geometry - Sine, Cosine, and Tangent Ratios

Math Help - Geometry - Sine, Cosine, and Tangent Ratios

from D-Ratio.com on October 25, 2007
Duration: 152
To access the complete lesson on this topic, go to www.yourteacher.com. Students learn that the sine of an angle of a right triangle is equal to the length of the side opposite the angle over the length of the hypotenuse (SOH), the cosine of an angle of a right triangle is equal to the length of the side adjacent to the angle over the length of the hypotenuse (CAH), and the tangent of an angle of a right triangle is equal to the length of the side opposite the angle over the length of the side adjacent to the angle (TOA). Students are then asked to find the values of the sine, cosine, and tangent of given angles in given right triangles.
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GCSE Maths Tutor no.6 the cosine ratio

GCSE Maths Tutor no.6 the cosine ratio

from http://www.mohamedouamer.co.cc on June 28, 2007
Duration: 139
lesson - what is the cosine ratio? plus an example
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