Partial Differential Equations

[Guest]

Hey friends

I am new here and would be happy if anyone could send me solutions or help resolving the issue.
I have attached an article and questions on the subject
Thank you so much for helping me.

[Guest]

Seriously? You post links to a list of home work problems that you can't even bother to type in yourself and expect people to do them for you? That's not going to help you.

Type in a few of the problems (many people will not open unknown links for fear of "viruses"), show what attempts you have already made on them, and where you got stuck, and people will help you