represent someone in something
to act as one's advocate or agent in business or legal proceedings. My lawyer represented me in court. His attorney will represent him in all his dealings with the publishing company.
represent someone or something as something
to depict or portray someone or something as something; to think of someone or something as something. I don't think you should represent me as so perfect. After all, I'm human. The artist represented my puppy as a playful animal.
represent something to someone
1. to exemplify something to someone. What does this behavior represent to you? This represents a lapse in manners to me.
2. to explain a matter to someone. He represented the matter to me in a much more charitable light. I did not represent it properly to you.