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Apr
27
asked When does $az + b\bar{z} + c = 0$ represent a line?
Apr
26
revised Distributing identical objects to identical boxes
deleted 355 characters in body
Apr
26
revised Distributing identical objects to identical boxes
Title doesn't say much about the post. May be too general.
Apr
26
suggested approved edit on Distributing identical objects to identical boxes
Apr
26
revised Distributing identical objects to identical boxes
added 29 characters in body
Apr
26
answered Distributing identical objects to identical boxes
Apr
26
comment Show that there is no rational number $r=m/n$ such that $r^3=3$
@EricNaslund Do you mean as long as $n\geq 2$ is an integer?
Apr
25
accepted Show that there is no rational number $r=m/n$ such that $r^3=3$
Apr
25
revised Show that there is no rational number $r=m/n$ such that $r^3=3$
added 96 characters in body
Apr
25
comment Show that there is no rational number $r=m/n$ such that $r^3=3$
@ThomasAndrews Does it make a difference that this is cubed root?
Apr
25
asked Show that there is no rational number $r=m/n$ such that $r^3=3$
Apr
25
accepted Proving a complex equality
Apr
25
comment Proving a complex equality
So for the trivial case, you can't use the quotient you've set $z$ equal to?
Apr
23
comment Proving a complex equality
I'm aware of that answer, but I'm looking for an algebraic answer simply because that wouldn't come to me immediately. How did you see that it was an ellipse? I ask because it's not in the familiar form that you see in conic sections of calculus.
Apr
23
asked Proving a complex equality
Apr
14
asked Number of matrices giving even row and column sum
Apr
14
accepted Finding a closed form expression for this sum
Apr
13
comment Finding a closed form expression for this sum
How do you know that the 2nd term is equal to $(1/\sqrt{1-4x})^2$?
Apr
13
comment Finding a closed form expression for this sum
@MarcvanLeeuwen How did you search for that? I didn't know how to search for it because there's no specific name or term associated with it. O.w. I'd just have to look through all the results one at a time.
Apr
13
asked Finding a closed form expression for this sum