Mathematics
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João Rimu

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 5 years, 9 months
  • 360 profile views
  • Last seen May 12 '14 at 0:02

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Top posts (12) All Questions Answers | Votes Newest

47 Where to build a bridge to cross a river in the shape of an annulus Oct 12 '13
6 Reflection on a circle [duplicate] Oct 7 '13
5 How to prove these two “obvious” facts about circles? Sep 28 '13
3 Derivatives and the tangent as the “limit of a secant” and as “no other line can be drawn between” Feb 2 '14
3 What is the converse of the triangle inequality? Mar 26 '14
2 Two points a line, three points a circle… Three points triangle inequality, four points Ptolemy-Euler inequality… Nov 2 '13
1 Why a unit set is not the same as its element? $\{x\} \ne x$? Mar 23 '14
1 How to justify the rule for the product of square roots of real numbers? Sep 30 '13
1 Intersection of a plane with an infinite right circular cylinder by means of coordinates Oct 28 '13
1 Please, as possible, explain in layman's terms: What is a discontinuous space? May 11 '14
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