Pythagorean Identities
Circle Identities
Trig
identities relating sine with cosine, tangent with secant,
and cotangent with cosecant. Derived from the Pythagorean
theorem.
Pythagorean Identities
sin2 θ + cos2 θ = 1
tan2 θ + 1 = sec2 θ
cot2 θ + 1 = csc2 θ
|
|