blutuu

328 reputation

Just a college student studying computer science. I'd like to learn some programming in my spare time as well so that's why I'm here!

	328 reputation	bio	website		visits	member for	7 months
7 badges		location			seen	Apr 15 at 5:11

328 Reputation

graph time post

166

Apr 4

+100	15:23	assoc	Association Bonus
+25	16:41	5 events	prove that the greatest number of regions that $n \geq 1$ circles can divide the plane is $n^2-n+2$
+20	15:23	4 events	Prove that for every positive integer $n$, $1/1^2+1/2^2+1/3^2+\cdots+1/n^2\le2-1/n$
+10	11:51	2 events	Show that the sum of 2n + 1 consecutive integers is divisible by 2n + 1.
+5	01:34	upvote	Prove $(n^5-n)$ is divisible by 5 by induction.
+2	15:57	accept	Prove that for every positive integer $n$, $1/1^2+1/2^2+1/3^2+\cdots+1/n^2\le2-1/n$
+2	14:31	accept	Show that the sum of 2n + 1 consecutive integers is divisible by 2n + 1.
+2	02:25	accept	Prove $(n^5-n)$ is divisible by 5 by induction.

Apr 3

+15	16:28	3 events	If $b\mid ca$, then $b\mid a$. Is this true?
+10	02:35	2 events	If $a\mid b$ and $b\mid a$, then $a = b$ or $a = -b$. Is the converse true?
+2	15:39	accept	If $b\mid ca$, then $b\mid a$. Is this true?
+2	03:17	accept	If $a\mid b$ and $b\mid a$, then $a = b$ or $a = -b$. Is the converse true?

Feb 4

16:07

upvote

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