How does hamlet respond to this new knowledge?

Hamlet responds to the new knowledge of his father's murder by becoming deeply introspective and troubled. He grApples with feelings of betrayal and revenge, leading him to feign madness as he seeks to confirm the ghost's claims. This revelation ignites his internal conflict, causing him to question morality, action, and the nature of existence. Ultimately, it propels him into a spiral of uncertainty and contemplation about how to avenge his father's death.