Fundamental of counting, permutations and combinations are covered in this blog. Start you journey into the world of combinatorics by learning the basics. Few theorems included in the blog.

Learn the approaches and tricks to solve any problem that starts with the phrase choose k objects from n.

The concave mirror forms a virtual image of the object when it is placed near pole. Also, the image formed by the concave mirror is larger than the size of the actual object. Thus, it covers small area and magnifies it.

Convex mirror covers larger area in small mirror. Thus, have wide range of uses in parking, buildings, automobile industry, etc. The convex mirror always forms a virtual image of the object.

Many a times, we need to find inverse of a given matrix. Let us look at one of the easiest ways to find the inverse of an invertible matrix.

Learn about Geometric Progression through solving examples. If stuck, check out the solutions under them.

Mathematical reasoning and the ability to communicate effectively are the two biggest boons of human kind to stay ahead of other species on this planet.

A convex mirror has a reflective surface that is curved outward and away from the light source. Convex mirrors reflect light outward away from principal focal point.

A concave mirror has a reflective surface that is curved inward and away from the light source. Concave mirrors reflect light inward to one focal point.

In the digital era, every piece of information being processed is stored in the form of matrices. Let us get started with the fundamentals of matrix algebra through this lecture.