Below is the Trigonometry Formulas List that covers basic identities, reciprocal, ratio formulas , sum/difference, and more, essential for exams and quick reference. Trigonometry Formulas Class 12 is a summary of all the formulas studied in class 12. These trigonometric formulas will help in solving all questions based on Trigonometry . Similarly, inverse of all the trigonometry function is angle. Note : Here angle is measured in radians, not degrees. Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo. In trigonometry , trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined.
