Row Matrix A matrix is called a row matrix, if it has only one row. e.g., the matrix $ M = \begin {bmatrix} 2 & -1 & 7 \\ \end{bmatrix} $ is a row matrix of order 1-by-3 and $ N = \begin {bmatrix} 1 & -1 \\ \end{bmatrix} $ is a row matrix of order 1-by-2. Column Matrix A ...

Read More »# Class 9

## Matrices and Determinants

The matrices and determinants are used in the field of Mathematics, Physics, Statistics, Electronics and other branches of science. The matrices have played a very important role in this age of computer science. The idea of matrices was given by Arthur Cayley, an English mathematician of nineteenth century, who first developed, “Theory of Matrices” in 1858. Matrix A rectangular array ...

Read More »## Some Basic Definitions in Chemistry

Matter is simply defined as anything that has mass and occupies space. Our bodies as well as all the things around us are examples of matter. The Chemistry studies all types of matters that can exist in any of three physical states; solid, liquid or gas. A piece of matter in pure form is termed as a substance. Every substance ...

Read More »## Fundamentals of Chemistry

The knowledge that provides understanding of this world and how it works, is science. The branch of science which deals with the composition, structure, properties and reactions of matter is called chemistry. It touches almost every aspect of our life. The development of science and technology has provided us a lot of facilities in daily life. Imagine the role and ...

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