- How to Work With Trigonometry(06:07)
- Patrick McCarthy shows how to work with trigonometric equations. Learn how to master the basic principles of sin, cos and tan.
**Date:**November 04, 2012**Source:**Two-Point-Four

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- How to Work With Trigonometry(06:07)
- Patrick McCarthy shows how to work with trigonometric equations. Learn how to master the basic principles of sin, cos and tan.
**Date:**November 04, 2012**Source:**Two-Point-Four

- How to Find the Value of Trigonometric Fun...(06:09)
- Learn how to find the exact value of trigonometric functions.
**Date:**December 18, 2010**Source:**TenMarks

- Learn about Law of cosines(09:26)
- Khan Academy Presents: Introduction to the law of cosines to solve for a side of a triangle when 2 sides and an angle are known.
**Date:**March 12, 2009**Source:**khanacademy

- Learn about Trig identities part 2 - parr ...(09:56)
- Khan Academy Presents: More playing around with trig identities
**Date:**March 12, 2009**Source:**khanacademy

- Learn about Proof: sin- a+b = - cos a- si...(09:47)
- Khan Academy Presents: Proof of the trig identity sin(a+b) = (cos a)(sin b) + (sin a)(cos b)
**Date:**March 12, 2009**Source:**khanacademy

- Learn about Fun Trig Problem(10:00)
- Khan Academy Presents: A trig problem involving the quadratic equation.
**Date:**March 15, 2009**Source:**khanacademy

- Learn about Ferris Wheel Trig Problem(07:20)
- Khan Academy Presents: Trigonometry problems dealing with the height of two people on a ferris wheen
**Date:**March 15, 2009**Source:**khanacademy

- Learn about Graphs of trig functions(10:16)
- Khan Academy Presents: Exploring the graphs of trig functions
**Date:**March 12, 2009**Source:**khanacademy

- Introduction to Tension(10:19)
- Khan Academy Presents: An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them.
**Date:**March 12, 2009**Source:**khanacademy

- Learn about Using Trig Functions(10:02)
- Khan Academy Presents: Using Trigonometric functions to solve the sides of a right triangle
**Date:**March 12, 2009**Source:**khanacademy

- Learn about Trigonometry word problems - p...(09:56)
- Khan Academy Presents: The first part of a problem when the captain of a ship goes off track.
**Date:**March 12, 2009**Source:**khanacademy

- Learn about Basic Trigonometry II(05:54)
- Khan Academy Presents: Another example of figuring out the sine, cosine, and tangent of an angle in a right triangle
**Date:**March 12, 2009**Source:**khanacademy