Trigonometric Squared

Tri-gono-metry derives from the Greek words trigonon (τρίγωνο; triangle) and metron (μέτρο; measure), reflecting its focus on measuring triangles and their properties, dealing primarily with six trigonometric functions:

 

1. sine (sin),

2. cosine (cos),

3. tangent (tan),

4. cotangent (cot),

5. secant (sec), and

6. cosecant (csc)

 

Squared trigonometric identities involve the square of trigonometric functions and are fundamental in simplifying expressions and solving equations like the Pythagorean Identity and Double Angle Formulas

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