Check sibling questions

Ex 3.1, 1 - In matrix A, write (i) order - Chapter 3 Class 12 - Formation and order of matrix

Ex 3.1, 1 - Chapter 3 Class 12 Matrices - Part 2

Ex 3.1, 1 - Chapter 3 Class 12 Matrices - Part 3


Transcript

Ex3.1 , 1 In the matrix A = [■8(2&5&19&−[email protected]&−2&5/2&[email protected]√3&1&−5&17)], write: The order of the matrix Since the matrix has 3 rows and 4 columns Order of matrix A = 3 × 4 Ex3.1 , 1 In the matrix A = [■8(2&5&19&−[email protected]&−2&5/2&[email protected]√3&1&−5&17)], write: (ii) The numbers of elements We can count that number of elements is 12 Alternatively, The order of matrix is 3 × 4 So, number of elements = 3 × 4 = 12 Ex3.1 , 1 In the matrix A = [■8(2&5&19&−[email protected]&−2&5/2&[email protected]√3&1&−5&17)], write: (iii) Write the elements a13, a21, a33, a24, a23 a13 is first row, third column ∴ a13 = 19 a21 is second row, first column ∴ a21 = 35 a33 is third row, third column ∴ a33 = −5

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.