I don’t know what it is about quotes and sayings but they spark (even though tiny) a light in my mind and heart. I believe it is the same for many of you. A few words spoken by someone gives you strength; lifts you up. They sometimes take you out of your dark and gloomy days. It happens most of the time that people rarely take action albeit they feel inspired. But that doesn’t take away the fact that many people live by certain quotes and even credit them for their success. We need some motivation in 2021 more than

Determinants is an important part of Matrices and this chapter focuses on determinants of orders upto 3. It also explains their cofactors and inverses, applications of determinants such as calculation of area of triangles, adjoint of matrices, consistency of a set of linear equations. The chapter is one of the most important for students. The determinant of a matrix A is signified as det(A), det A, or |A|. In Linear algebra it is a scalar value which can be computed from the elements of a square matrix. It encrypts specific properties of the linear transformation described by the matrix. The

Matrices a plural of matrix which is a table of numbers, symbols or expressions, arranged in rows and columns. If they have the same dimensions i.e each matrix has the same number of columns and rows as the other, these matrices can be added or subtracted by an element. However, for matrix multiplication, only when the number of columns in the first equals the number of rows in the second i.e. the inner dimensions are the same, n for an (mxn)-matrix times an (nxp)-matrix, resulting in an (mxp)-matrix. Topics and Sub Topics Class 12 Maths Chapter 3 - Matrices: •

NCERT can be considered as a core contributor of CBSE. The National Centre for Education, Research and Training develops the curriculum for CBSE meaning all the textbooks for CBSE schools are developed and published by the organization. These books are very in depth yet simple at the same time. It is a known fact that NCERT Books are one of the most important study materials for a lot of public service examinations and college entrance exams. So these books hold a lot of value and contain timeless information. In general, class 12 NCERT books are really sought after because of