Talk:06-240/Homework Assignment 1
What information should be included on the homework assignments besides the answers to the assignment? Is student name, Math 240, Homework Assignment 1 and date sufficient? MC
Yes. --Drorbn 14:50, 15 September 2006 (EDT)
i have a question on Q4. for the part a^-1=a^2, if it's true, then a*a^2=1, which makes a=1....but a can't be 1 right?
I don't see why implies . --Drorbn 06:16, 22 September 2006 (EDT)
because , if ab=1, why shouldn't ?
But what's wrong with that? --Drorbn 17:16, 22 September 2006 (EDT)
Finally I'm registered.....ok, if , then a=1,but a field cannot have identical elements.....or can it?.........btw why is your name shown here but mine not?...never used a wiki based site....
Repeat: I don't see why implies . --Drorbn 03:24, 23 September 2006 (EDT)
er....since , or am I right about ?....and what makes except a=1?...sorry but please tell me where I got wrong.........
Well, OUR very own field has an element for which yet ... --Drorbn 17:08, 23 September 2006 (EDT)
ok.....that's....very...convincing......I'll shut up...
You seem unhappy, but I actually meant what I said. The equality in a general field does not imply the equality --- why would it? After all, does not imply either. Here are two examples for fields in which there is an for which :
- Our field and our .
- The complex numbers and .
--Drorbn 17:38, 24 September 2006 (EDT)
Actually I guessed it had something to do with the field. But this concept is still new to me, I just can't convice myself a is not 1 when a*a*a=1...But that example of complex numbers is indeed very convincing....thank you for your patience :)