1. Chapter 3 Class 12 Matrices
  2. Serial order wise
  3. Ex 3.1

Ex 3.1, 10

Last updated at Dec. 8, 2016 by

Ex 3.1, 10 - Number of matrices of order 3 x 3, entry 0 or 1 - Formation and order of matrix

  1. Chapter 3 Class 12 Matrices
  2. Serial order wise
    3. Ex 3.1
    Ex 3.2 →
Ask Download

Transcript

Ex3.1 , 10 The number of all possible matrices of order 3 × 3 with each entry 0 or 1 is: (A) 27 (B) 18 (C) 81 (D) 512 Let A be the matrix of 3 × 3 i.e. [■8(𝑎_11&𝑎_12&𝑎_13@𝑎_21&𝑎_22&𝑎_23@𝑎_31&𝑎_32&𝑎_33 )]_(3 × 3) There are total 9 elements Each item can be filled in 2 ways (0 or 1) Hence, Number of matrices possible = 2 × 2 × 2 ……. × 2 = 29 = 512

Chapter 3 Class 12 Matrices
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 7 years. He provides courses for Mathematics and Science from Class 6 to 12. You can learn personally from here https://www.teachoo.com/premium/maths-and-science-classes/.
Jail