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Mar
18
comment Proof that $\binom{ n}{k} \in \mathbb N$
Most of the proof exercises in Spivak seem to follow directly from the text. I had to incorporate quite a bit of outside knowledge to do this one, which makes me feel like I'm missing the point...
Mar
18
asked Proof that $\binom{ n}{k} \in \mathbb N$
Mar
16
comment Help with this inequality.
Nvm, I figured it out.
Mar
16
accepted Help with this inequality.
Mar
16
accepted Help proving a little theorem about inequalities
Mar
16
accepted Trying to prove this statement about inequalities
Mar
16
comment Help with this inequality.
I caught the triangle inequality, and I'm clear on the cross multiplication... I just don't know what's happening between steps two and three. To be more specific, where is $0<\frac{|y_0|}{2}<|y|$ coming from? Sorry, I'm a little slow.
Mar
16
comment Help with this inequality.
I lost you after the second arrow. Do you think you could elaborate further on that step?
Mar
16
asked Help with this inequality.
Mar
15
revised Trying to prove this statement about inequalities
LaTex added
Mar
15
suggested approved edit on Trying to prove this statement about inequalities
Mar
15
asked Trying to prove this statement about inequalities
Mar
12
asked Help proving a little theorem about inequalities
Mar
10
accepted Question from Spivak's Calculus. Hint makes no sense.
Mar
10
comment Question from Spivak's Calculus. Hint makes no sense.
D'oh! What a dumb oversight. I amaze myself sometimes.
Mar
10
asked Question from Spivak's Calculus. Hint makes no sense.
Mar
4
asked Help me find a less tedious way to prove this theorem about inequalities
Feb
18
comment Help interpreting question about a system of equations
Ok, after reading through this, the problem makes much more sense. For some reason, I never thought to think about what the discriminant would have to be. It didn't help that the wording confused me either.
Feb
18
accepted Help interpreting question about a system of equations
Feb
18
accepted Triangle inequality not making sense in this problem.