#### INTEGRAL CALCULUS-174

Proposed by Vasile Mircea Popa-Romania INTEGRAL CALCULUS-174 Solution 1 by Kamel Benaicha-Algiers-Algerie, Solution 2 by Mokhtar Khassani-Mostaganem-Algerie

#### AMAZING IDENTITY-57

Proposed by Srinivasa Raghava-AIRMC-India AMAZING IDENTITY-57 Solution by Kamel Benaicha-Algiers-Algerie

#### INTEGRAL CALCULUS-173

Proposed by Daniel Adeleke-Nigeria INTEGRAL CALCULUS-173 Solution by Yen Tung Chung-Taichung-Taiwan

#### INTEGRAL CALCULUS-172

Proposed by Mokhtar Khassani-Mostaganem-Algerie INTEGRAL CALCULUS-172 Solution by Dawid Bialek-Poland

#### AMAZING IDENTITY-56

Proposed by Srinivasa Raghava-AIRMC-India AMAZING IDENTITY-56 Solution 1 by Kamel Benaicha-Algiers-Algerie, Solution 2 by Ekpo Samuel-Nigeria

#### INTEGRAL CALCULUS-171

Proposed by Abdul Mukhtar-Nigeria INTEGRAL CALCULUS-171 Solution by Dawid Bialek-Poland

#### AMAZING IDENTITY-55

Proposed by Srinivasa Raghava-AIRMC-India AMAZING IDENTITY-55 Solution 1 by Kamel Benaicha-Algiers-Algerie, Solution 2 by Tobi Joshua-Nigeria

#### INTEGRAL CALCULUS-170

Proposed by Jalil Hajimir-Toronto-Canada INTEGRAL CALCULUS-170 Solution by Daniel Sitaru-Romania

#### AMAZING IDENTITY-54

Proposed by Srinivasa Raghava-AIRMC-India AMAZING IDENTITY-54 Solution by Kamel Benaicha-Algiers-Algerie

#### ELEGANT INEQUALITY-306

Proposed by Daniel Sitaru-Romania ELEGANT INEQUALITY-306 Solution 1 by Florentin Visescu-Romania, Solution 2 by Adrian Popa-Romania