Trigonometry 3 : Unit Circle : Sine Cosine Tricks

I have often used Trigonometry in previous videos to make video games, animations and so much more. Over the next few videos I teach trigonometry so that you can master all of the great things you can do with it. In this video I cover :

► Isosceles Right Triangles
► Inverse Trig Functions
► Unit Circles
► 30/60/90 Triangles
► Calculating Triangle Side Lengths
► Easily Calculating 16 Angles
► Finding Circle Coordinates
► And more

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#Trigonometry #CollegeAlgebra #LearnWithMe

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[justingolden]

12:00 for easily memorizing the coordinates, I'll do ya one easier:
sqrt(1) / 2
sqrt(2) / 2
sqrt(3) / 2

since sqrt(1) = 1. the larger the x or y, the larger the number, so if x is larger and y is smaller, x is sqrt(3)/2 and y is 1/2, if they're both the same then sqrt(2)/2.

of course, this only works for 30, 45, 60 degrees etc

[Matrixsection]

Thanks for sharing some part of your knowledge

[playea]

I love your videos! Any chance of a scipy tutorial anytime soon? Thank you!

[Professor_Xavier_]

I can't understand the unit circle.. that coordinates