CBSE Class 12 Maths Notes Chapter 1 Relations and Functions Relation: A relation R from set X to a set Y is defined as a subset of the cartesian product X × Y. We can also write it as R ⊆ {(x, y) ∈ X × Y : xRy}. Note: If n(A) = p and n(B) = q from set A to set B, then n(A × B) = pq and number of relations = 2pq. Types of Relation Empty Relation: A relation R in a set X, … [Read more...]
Inverse Trigonometric Functions Class 12 Notes Maths Chapter 2
CBSE Class 12 Maths Notes Chapter 2 Inverse Trigonometric Functions Inverse Trigonometric Functions: Trigonometric functions are many-one functions but we know that inverse of function exists if the function is bijective. If we restrict the domain of trigonometric functions, then these functions become bijective and the inverse of trigonometric functions are defined within the … [Read more...]