Stuck on a Ax=B matrix question, need confirmation if my work is correct

Question

So from the matrix question we have, will it be possible to have 2 distinct real roots for $b_1$ and $b_2$? Or am I supposed to leave them as I did (in a relation with each other?)

Also is that what I'm supposed to explain in the second part where they ask about a unique solution?

Is there any particular reason you created what’s essentially a duplicate of the previous question you asked not long before this instead of updating that one with your efforts? — amd, Oct 02 '18 at 20:22
I couldn't find the option to edit the question as I'm in mobile, so I just this one with my work in it — Rad, Oct 02 '18 at 20:59

score 1 · Answer 1 · answered Oct 02 '18 at 09:38

1

You found that if $b_1=4b_2$ then there is only one solution which is $x_1=\frac{b_1}{2},x_2=\frac{b_1}{4}$. So you actually showed that if a solution exists it must be unique.

answered Oct 02 '18 at 09:38

Mark

39,605

So is there anything else I might have to add, or is that it? – Rad Oct 02 '18 at 09:46
Nothing to add, your solution is correct. But please, next time when you ask a question try to post it here instead of giving links. It will be much easier for people to read it then. – Mark Oct 02 '18 at 09:51
Yeah sure, thanks for letting me know. This is my first time here – Rad Oct 02 '18 at 09:53

Stuck on a Ax=B matrix question, need confirmation if my work is correct

1 Answers1