Trigonometry - The signs of trigonometric functions
6:13
YouTubeMySecretMathTutor
Trigonometry - The signs of trigonometric functions
If you are given an angle and put it into a trigonometric function, it might be positive or negative. This video will give you the tools to figure out which sign it is. Near then end we can use information about the sign to figure out what quadrant our angle is in. For more videos please visit http://www.mysecretmathtutor.com
814.2K viewsAug 19, 2016
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