λ-Symmetry and Integrating Factor For x ̈(f(t,x)+g(t,x)x ̇)e^x

-4d90550d17f4602e089-6ca3 20220318044837467 hyperscienceij@gmail.com:rcrl hyperscienceij@gmail.com WEB-FORM Hyperscience International Journals HIJ 28213300 03 01 2022 2 1 λ-Symmetry and Integrating Factor For x ̈(f(t,x)+g(t,x)x ̇)e^x School of Mathematics, Iran University of Science and Technology, Narmak-16, Tehran, I.R. Iran M Nadjafikhah In this paper, we will calculate an integrating factor, first integral, and reduce the order of the non-Linear second-order ODEs , through the λ-symmetry method. Moreover, we compute an integrating factor, first integral and reduce the order for particular cases of this equation. 03 01 2022 7 13 10.55672/hij2022pp7-13 https://hscience.org/index.php/hij/article/view/14