I am learning about finite automata and regular expressions, but I cannot find solution to a problem, so I'll be thankfull if someone can help me. Thanks in advance.

The problem is:

Write regular ...

Write regular expresiond and find finite automata

I am learning about finite automata and regular expressions, but I cannot find solution to a problem, so I'll be thankfull if someone can help me. Thanks in advance.

The problem is:

Write regular ...

I am learning about finite automata and regular expressions, but I cannot find solution to a problem, so I'll be thankfull if someone can help me. Thanks in advance.

The problem is:

Write regular ...