Final answer:
No, Rosencrantz and Guildenstern have not had any luck in finding out the cause of Hamlet's bizarre behavior.Rosencrantz and Guildenstern are unsuccessful in discovering the cause of Hamlet's odd behavior, as he is manipulating them.
Step-by-step explanation:
No, Rosencrantz and Guildenstern have not had any luck in finding out the cause of Hamlet's bizarre behavior. The play suggests that their attempts to uncover the reason for Hamlet's actions are futile, as Hamlet is aware of their purpose and is deliberately misleading them. This is part of the larger exploration of madness and deception within the play, where Hamlet's true state of mind is a subject of debate among characters and scholars alike.