#### CYCLIC INEQUALITY-536

Proposed by Daniel Sitaru-Romania CYCLIC INEQUALITY-536 Solution by Marian Ursarescu-Romania

#### LIMIT-175

Proposed by Daniel Sitaru-Romania LIMIT-175 Solution by Togrul Ehmedov-Baku-Azerbaijan

#### LIMIT-174

Proposed by Marian Ursarescu-Romania LIMIT-174 Solution by Remus Florin Stanca-Romania

#### LIMIT-173

Proposed by Daniel Sitaru-Romania LIMIT-173 Solution by Pierre Mounir-Cairo-Egypt

#### INEQUALITY IN TRIANGLE-987

Proposed by Daniel Sitaru-Romania INEQUALITY IN TRIANGLE-987 Solution by Soumava Chakraborty-Kolkata-India

Article by D.M.Batinetu-Giurgiu, Daniel Sitaru, Neculai Stanciu-Romania SOME MATRICES IDENTITIES WITH FIBONACCI NUMBERS AND LUCAS NUMBERS

#### PROBLEM 828-THE PENTAGON JOURNAL

Proposed by D.M.Batinetu-Giurgiu, Neculai Stanciu-Romania SOLUTION 828 Solution by Remus Florin Stanca-Romania

#### PROBLEM 823-THE PENTAGON JOURNAL

Proposed by Pedro Pantoja-Brazil SOLUTION 823 Solution 1 by Sanong Huayrerai-Nakon Pathom-Thailand, Solution 2 by Tran Hong-Vietnam

#### LIMIT-172

Proposed by Daniel Sitaru-Romania LIMIT-172 Solution by Pierre Mounir-Cairo-Egypt

#### LIMIT-171

Proposed by Naren Bhandari-Bajura-Nepal LIMIT-171 Solution by Zaharia Burghelea-Romania