Chester's answer to Suhaina's Junior College 2 H3 Maths Singapore question.
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Notice that for a system of linear eqns to have infinite solutions, the RREF cannot be a Id matrix.
As such, you could have
1 0 0
0 1 0
0 0 0
Or
1 0 0
0 0 1
0 0 0
as combinations of a 3rd variable being arbitrary.
Could you use this to figure out how to make 2 out of 3 variables have arbitrary values while fixing the first?
As such, you could have
1 0 0
0 1 0
0 0 0
Or
1 0 0
0 0 1
0 0 0
as combinations of a 3rd variable being arbitrary.
Could you use this to figure out how to make 2 out of 3 variables have arbitrary values while fixing the first?
Date Posted:
4 years ago
alright! I have tried using that and my answer is like submitted above if you dont mind can check if that's what you meant thank youu very much for the guidance!!
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