Question: Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system

Hye, have a good day everyone..

can anyone know why I got this error? :(second_grade.mw

Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system


Here I have attached the file. thank you in advance :)

Please Wait...