Is this sentence written in a passive voice You can succeed if you set goals and work hard.?

No, the sentence "You can succeed if you set goals and work hard" is not written in the passive voice.

Here's why:

* Active Voice: The subject ("you") is performing the action ("succeed").

* Passive Voice: The subject would be acted upon. For example, "Success can be achieved if goals are set and hard work is done."

The sentence you provided uses the active voice because it clearly identifies the person who is doing the action.