Class 12th Maths Notes of Chapter 6 Application of Derivatives. Rate of change of Quantity. Formula of Triangle, Right Angle Triangle, Equilateral Triangle, Rectangle, Square, Cuboid, Cube, Circle, Sphere, Cone, Cylinder With Examples. Increasing and Decreasing of Function with examples. Tangents and Normals: Concept and Examples. Approximations: Concept, Formulae and Examples. Maximum and Minimum : First Derivative Test and Local Maximum and Minimum using second Derivative test. Absolute Maximum and Minimum. Application of Maximum and Minimum.