#### INTEGRAL CALCULUS-291

Proposed by Daniel Sitaru-Romania INTEGRAL CALCULUS-291 Solution by Serlea Kabay-Liberia,Generalization by Ay Men-Algerie

#### LIMIT-447

Proposed by Marian Ursarescu-Romania LIMIT-447 Solution 1 by proposer,Solution 2 by Iulian Cristi-Romania, Solution 3 by Ravi Prakash-New Delhi-India

#### AMAZING IDENTITY-90

Proposed by Tobi Joshua-Nigeria AMAZING IDENTITY-90 Solution by Akerele Olofin-Nigeria

#### INTEGRAL CALCULUS-290

Proposed by Naren Bhandari-Bajura-Nepal INTEGRAL CALCULUS-290 Solution 1 by Gabriel Brehuescu-Romania,Solution 2 by Surjeet Singhania-India, Solution 3 by Akerele Olofin-Nigeria

#### LIMIT-445

Proposed by Florica Anastase-Romania LIMIT-445 Solution 1 by Adrian Popa-Romania, Solution 2 by Khaled Abd Imouti-Damascus-Syria

#### LIMIT-444

Proposed by Daniel Sitaru-Romania LIMIT-444 Solution by Ravi Prakash-New Delhi-India

#### LIMIT-441

Proposed by Daniel Sitaru-Romania LIMIT-441 Solution 1 by Ruxandra Daniela Tonila-Romania, Solution 2 by Ay Men-Algerie