This image shows the relationship between the special triangles in the first quadrant of the Unit Circle.
A compilation of superscript and subscript letters, numbers, symbols, and Greek characters. Useful for blog editors that don't support sub/superscript, or for any word processor without this functionality.
The Multi-Lane Signal Theorem
If you've ever passed a semi on its right, stopped on the freeway because you missed your exit, or driven the wrong way on a one-way street, you've probably used this without even knowing it!