Check sibling questions

Example 7 - Find 2A - B if A = [1 2 3 2 3 1], B = [3 -1 3 - Addition/ subtraction  of matrices

Introducing your new favourite teacher - Teachoo Black, at only ₹83 per month


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)]

Davneet Singh's photo - Co-founder, Teachoo

Made by

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.