English

Pythagorean Identity

How to use the Pythagorean identity to solve the related problems: formula, 3 examples, and their solutions.

Formula

Example(sin θ + cos θ)2/sin θ = csc θ + 2 cos θ

Example(cos2 θ)/(1 - sin θ)

Examplesin2 θ(1 + tan2 θ) = tan2 θ