NCERT Class 12 Mathematics Formulae
Contains an exhaustive list of formulae for NCERT Class 12 Mathematics (041), including:
Ch 1: Relations and Functions
Ch 2: Inverse Trigonometric Functions
Ch 3: Matrices
Ch 4: Determinants
Ch 5: Continuity and Differentiability
Ch 6: Application of Derivatives
Ch 7: Integrals
Ch 8: Application of Integrals
Ch 9: Differential Equations
Ch 10: Vector Algebra
Ch 11: Three-Dimensional Geometry
(Note 1: There aren't really any formulae in Ch 12: Linear Programming Functions. This deck does not contain formulae for Ch 13: probability, but it is an exhaustive overall deck for all other chapters for class 12 NCERT Maths, I'd urge you to download it, it was very helpful for me)
(Note 2: I have made every attempt to make sure that the formulae and data in the deck are accurate, but I'm just a student too and there is a slight chance there might be errors. However, several friends and teachers have gone through it and confirmed the accuracy of the flashcards. So there is a good chance that all the cards are correct.)
(Note 3: These formulae are made with the CBSE 2022-23 portion for reference, this means that formulae that are part of the deleted portion for 2022-23 are NOT INCLUDED in this deck. Do check if this matches with the portion applicable for your board exams and make the appropriate additions or deletions as per your needs.)
(Note 4: Also note, these cards are very poorly tagged but a quick look can help you ascertain which ones are useful for you (in case you're preparing for a chapter/topic test) but if you're preparing for the board exam in general, then there should be no problem)