Trigonometry

Topics within Trigonometry

TRIGONOMETRY

trig•o•nom•e•try

(noun)

  1. The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles
  2. A branch of joke-making involving signs, reasons, and reasonably tan gentlemen.
The six basic trigonometric functions are defined off of a triangle:
C A B a b c

$$\sin{A} = \frac{a}{c}~~~~~~ \csc{A}=\frac{c}{a}$$

$$\cos{A} = \frac{b}{c}~~~~~~ \sec{A}=\frac{c}{b}$$

$$\tan{A} = \frac{a}{b}~~~~~~ \cot{A}=\frac{b}{a}$$