In the case of nonlinear problems. whether in differential or difference equations. it is difficult and in some cases impossible to invert the problem and obtain a suitable mapping that can be effectively used in fixed point theory to qualitatively analyze its solutions. In this paper we consider the existence of a positive sequence and utilize it in the capacity of integrating factor... https://www.markbroyard.com/mega-offer-maybelline-fit-me-fdn-matte-pore-355-coconut-for-sale-top-super/