Category «mathematics»

Math Websites Collection for Students of All Ages

A Maths Dictionary for Kids Quick Reference by Jenny Eather

At Tech-Wonders.com, I love every opportunity to share educational material and useful websites with others. Fun and engaging educational material is all the more welcome when it comes to subjects that may prove more challenging for some students, such as Mathematics. Previously I had published a post featuring useful Math websites for kids titled ‘Cool …

Cool Math Websites for Kids

Many children find maths as a difficult subject to understand especially the algebra part of it. This early disinterest created in the minds of the children towards maths is mainly due to the age-old boring teaching techniques that least care about getting students interested in what they are learning so that they can understand it …

Inverse of a Matrix

Inverse of a Matrix Suppose A is a given matrix. If there exists a matrix B such that, AB = I = BI then A is said to be an invertible matrix and B is called as inverse of A and is denoted by Note:- If a matrix A posses an inverse then A is …

Define Adjoint of a Matrix

Adjoint of a Matrix If A is a square matrix then the transpose of a matrix obtained by replacing the elements of A by their co-factors is called the adjoint of a matrix A and is denoted by Adj A. For example, Note If A is a square matrix of order ‘3’ and K is …

Singular and Non-Singular Matrix

A is a square matrix. If |A| = 0 , then A is called singular and if |A| ≠ 0 then A is called as a non-singular matrix. Theorems:- If A is a non-singular matrix then If A is non-singular then A has to be invertible. If A, B are non-singular matrices then If A …