- #1
- 7
- 0
B is not the identity matrix or the zero matrix
suppose both A and B are 3X3
I dont have clue on this..any hits?
suppose both A and B are 3X3
I dont have clue on this..any hits?
B=A, or B=I.it is given A find B such that AB=BA..
what is the obvious choice...
Hmm... I must have been thinking about something else in particular [which I can't recall now]. Yeah, the k is redundant if I say polynomial.Uh? *any* polynomial in A commutes with A (dunno what the k has to do with anything).
I read all of the posts and nobody appeared to answer the posters question to satisfaction. Such anger, I would have expected a better show from someone with such credentials as "homework helper" and "science advisor."Does nobody read the f**king posts before them and try to figure out if they've answered the question or not?
Did you read the last post before you made your first post to this thread? The one in which Matt Grimes saidI read all of the posts and nobody appeared to answer the posters question to satisfaction. Such anger, I would have expected a better show from someone with such credentials as "homework helper" and "science advisor."
How does "any polynomial in A will do" not answer the question? If you don't understand, that is one thing (ask for clarification/amplification, and you will get it). If, on the other hand, you didn't bother to read the prior answers before posting an incorrect answer, that is quite another thing. It tends to piss people off ...Any polynomial in A will do, as has been said many times in this thread. (I think this is about the 3rd time I've said it.)
There may have been easier methods, but seeing as it is early in the school semester and the poster may not be familiar with the other methods, I gave a detailed solution involving elementary terms and operations. After the second post was made, the original poster did not seem to be satisfied, hence my detailed post. In short, don't get so emotional over the internet. If I'm beating a dead horse, so be it.I would also like to point out that hotcommodity's suggested solution is precisely the first one given in the thread in post 2 by d_leet as well, which is what really annoyed me even more than ignoring the better and easier methods.