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43 Answers

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12	Proving A is Invertible if $A + A^2 = I$
6	Equivalence Classes in the cartesian plane
6	Area enclosed by the curve $x^2+y^2=\|x\|+\|y\|$.
5	Vector Space or Not?
4	Showing $f:\mathbb{R^2} \to \mathbb{R}$, $f(x, y) = x$ is continuous

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1,068 Reputation

+10	Why don't we define “imaginary” numbers for every “impossibility”?
+10	Vector Space or Not?
+10	Is the division property of equality just a special case of the multiplication property?
+10	If $f(x)\leq f(f(x))$ for all $x$, is $x\leq f(x)$?

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17 homework × 6	8 algebraic-topology × 3
17 linear-algebra × 2	6 coordinate-systems
14 general-topology × 10	6 equivalence-relations
12 matrices	5 elementary-set-theory × 5
8 metric-spaces × 3	5 algebra-precalculus × 4

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	Musical Practice & Performance	2,311 rep	422
$Mathematics Stack Exchange$	Mathematics	1,068 rep	111
$TeX - LaTeX Stack Exchange$	TeX - LaTeX	128 rep	5
	Stack Overflow	101 rep
	Area 51	101 rep	2

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Organizer	Citizen Patrol
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104 Votes Cast

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