Trig identities

**Notice:** This post was updated on March 10, 2015 to reflect a correction in the Trigonometric Identities image. The accompanying Google Document was also corrected, as was the link to that Document. If you downloaded the Google Document before 03/10/2015, please re-visit this link and download the new version. Thank you, and sorry for the inconvenience. CLICK HERE to view the YouTube video that corresponds to this post. Identity problems are probably the toughest part of Trigonometry for…

A list of reciprocal identities and quotient identities that make a great first lesson for when you teach trig identities. Come check out all the lessons I use to break down trig identities for my students.

Yes, unfortunately these little lovelies are important so I decided most reluctantly to give them a page all to themselves.

This study sheet has ten groups of trig identities for the basic trigonometry functions. Print a copy and keep it with your textbook today.

Of course you use trigonometry, commonly called trig, in pre-calculus . And you use trig identities as constants throughout an equation to help you solve proble

Magic Hexagon for Trig Identities

Graphs of Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent.

Trig Identities - All List of Trigonometric Identities - Learn Trigonometry | Math formulas, Trigonometry, Math methods

Use our free trigonometry laws and identities reference sheet and discover how to apply the laws of sines and cosines to find all of the side lengths and angles of any triangle with confidence