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secondary 4 | E Maths
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Merlion
Merlion

secondary 4 chevron_right E Maths chevron_right Singapore

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Date Posted: 1 year ago
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Jia Earn Lim
Jia Earn Lim's answer
96 answers (Tutor Details)
1st
I showed matrix multiplication method to do this however this question might be testing on the properties of identity matrix. When you multiply matrix B with matrix A (which is an identity matrix), it will just result in matrix B again (as seen here). Hope this helps ;)