Romanian Mathematical Magazine

Category: Contests

10/20/2017

GIREAUX’S THEOREM

Published by Alexander Bogomolny-New Jersey-USA https://www.cut-the-knot.org/m/Algebra/GireauxTheorem.shtml

10/16/2017

SSMA-MAGAZINE NOVEMBER 2017

SSMA-Magazine-November 2017 https://ssma.org/publications/ November-2017

09/25/2017

PROBLEM 228-CUTTHEKNOTMATH

Proposed by Daniel Sitaru-Romania https://www.cut-the-knot.org/triangle/InequalityMostlyWithMedians.shtml Solution 1 by Soumava Chakraborty-Kolkata-India, Solution 2 by Soumitra Mandal-Chandar Nagore-India Published by Alexander Bogomolny-USA…
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09/25/2017

PROBLEM 227-CUTTHEKNOTMATH

Proposed by Mehmet Sahin-Ankara-Turkey https://www.cut-the-knot.org/triangle/Angle135.shtml Solution by Daniel Sitaru-Romania Published by Alexander Bogomolny-USA

09/25/2017

PROBLEM 226-CUTTHEKNOTMATH

Proposed by Daniel Sitaru-Romania https://www.cut-the-knot.org/m/Geometry/InequalityInCyclicQuadrilateral4.shtml Solution by proposer Published by Alexander Bogomolny-USA

09/25/2017

PROBLEM 225-CUTTHEKNOTMATH

Proposed by Daniel Sitaru-Romania https://www.cut-the-knot.org/m/Geometry/InequalityInCyclicQuadrilateral3.shtml Solution by proposer Published by Alexander Bogomolny-USA

09/25/2017

PROBLEM 224-CUTTHEKNOTMATH

Proposed by Daniel Sitaru-Romania https://www.cut-the-knot.org/triangle/InequalityForSidesAndArea.shtml Solution by proposer Published by Alexander Bogomolny-USA  

09/25/2017

PROBLEM 223-CUTTHEKNOTMATH

Proposed by Mehmet Sahin-Ankara-Turkey https://www.cut-the-knot.org/triangle/InradiiCircumradii2.shtml Solution 1 by Daniel Sitaru-Romania, Solution 2 by Marian Dinca-Romania, Solution 3 by Miguel Ochoa…
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09/24/2017

PROBLEM 222-CUTTHEKNOTMATH

Proposed by Daniel Sitaru-Romania https://www.cut-the-knot.org/m/Algebra/InequalityInFourWeightedVariables.shtml Solution 1 by Kevin Soto Palacios-Huarmey-Peru, Solution 2 by Amit Itagi-USA, Solution 3 by proposer…
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09/24/2017

PROBLEM 221-CUTTHEKNOTMATH

Proposed by Daniel Sitaru-Romania https://www.cut-the-knot.org/m/Algebra/TrickyIntegral.shtml Solution by Ravi Prakash-New Delhi-India Published by Alexander Bogomolny-USA