Trigonometric Functions

1. Right Triangles

2. Functions

2.1. SIN

2.1.1. Opposite/ Hypotenuse (o/h)

2.1.2. Reciprocal: CSC (h/o)

2.2. COS

2.2.1. Adjacent/ Hypotenuse (a/h)

2.2.2. Reciprocal: SEC (h/a)

2.3. TAN

2.3.1. Opposite/ Adjacent (o/a)

2.3.2. Reciprocal: COT (a/o)

3. SOH CAH TOA

3.1. "Some Old Horse" SIN= O/H

3.2. "Caught Another Horse" COS= A/H

3.3. "Taking Oats Away" TAN= O/A