Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | E Maths
One Answer Below

This question need another answer.

Answer This Question
Merlion
Merlion

secondary 4 chevron_right E Maths chevron_right Singapore

Help.

Date Posted: 1 year ago
Views: 191

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
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 ;)