Last updated at April 2, 2019 by Teachoo
Learn All Concepts of Chapter 3 Class 12 Matrices - FREE. Check - Matrices Class 12 - Full video
We can add or subtract matrices only if they are of the same order
Let’s actually add them.
When adding two matrices, each corresponding element gets added
Similarly,
Transcript
Example [■8(3&2@1&4)][■8(3&2@1&4@5&3)] We cannot add them But we can add [■8(3&2@1&4)][■8(−9&2@−1&3)] We can add them [■8(3&2@1&4@5&3)][■8(−2&5@−8&12@0&−18)] We can add them [■8(3&2@1&4)]+ [■8(−9&2@−1&3)] =[■8(3+(−9)&2+2@1+(−1)&4+3)] =[■8(−6&4@0&7)] [■8(3&2@1&4@5&3)]−[■8(−2&5@−8&12@0&−18)] =[■8(3−(−2)&2−5@1−(−8)&4−12@5−0&3−(−18))] =[■8(3+2&−3@1+8&−8@5&3 +18)] =[■8(5&−3@9&−8@5&21)]
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