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NTA CUET Mathematics With Fully Solved 2023 Papers by Pearson
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NTA CUET Mathematics With Fully Solved 2023 Papers by Pearson

by Prakash Gupta, Prashant Jain
April 2024
Intermediate to advanced content levelIntermediate to advanced
432 pages
16h 41m
English
Pearson India
Content preview from NTA CUET Mathematics With Fully Solved 2023 Papers by Pearson

CHAPTER 7

Matrices

CHAPTER AT A GLANCE

Definition

Any rectangular arrangement of numbers (real or complex) (or of real-valued or ­complex-valued expressions) is called a matrix. If a matrix has m rows and n columns then the order of the matrix is written as m × n and we call it as order m by n.

The general m × n matrix is:

A =  ch07_eqn277

where aij denote the element of ith row and jth column. The above matrix is usually denoted as [aij]m × n.

Notes:

  • The elements a11, a22, a33, … are called as diagonal elements. Their sum is called trace of A denoted as tr(A)
  • Capital letters of English alphabets are used to denote matrices.
  • Order of a matrix: If ...
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Publisher Resources

ISBN: 9788196874308