# Example 7 - Chapter 3 Class 12 Matrices (Term 1)

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Example 7 If A = [ 8(1&2&3@2&3&1)] and B = [ 8(3& 1&3@ 1&0&2)] then find 2A B. Finding 2A 2A = 2 [ 8(1&2&3@2&3&1)] = [ 8(2 1&2 2&2 3@2 2&2 3&2 1)] = [ 8(2&4&6@4&6&2)] Now, finding 2A B 2A B = [ 8(2&4&6@4&6&2)] [ 8(3& 1&3@ 1&0&2)] = [ 8(2 3&4 ( 1)&6 3@4 ( 1)&6 0&2 2)] = [ 8( 1&4+1&3@4+1&6&0)]

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Example 7 You are here

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Example 23 Deleted for CBSE Board 2022 Exams

Example 24 Important Deleted for CBSE Board 2022 Exams

Example 25 Important Deleted for CBSE Board 2022 Exams

Example 26 Important

Example 27 Important

Example 28

Chapter 3 Class 12 Matrices (Term 1)

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.