The Trigonometric formulas or Identities are the equations which are true in the case of Right-Angled Triangles. Some of the special trigonometric identities are as given below – 1. Pythagorean Identities sin ² θ + cos ² θ = 1 tan 2 θ +...

The Trigonometric formulas or Identities are the equations which are true in the case of Right-Angled Triangles. Some of the special trigonometric identities are as given below – 1. Pythagorean Identities sin ² θ + cos ² θ = 1 tan 2 θ +...