Hamlet is seen as being indecisive throughout the first three acts of the play. Which of these lines from acts 4 and 5 show that Hamlet is finally...

's
determination to focus on avenging his father's murder actually begins right after the
"play-within-a-play" in act 3, scene 2, whendecides thatis telling the
truth.

HAMLET: O good , I'll take the ghost's word for
a
thousand pound! (3.2.275€“276)

Hamlet's desire
for revenge suffers a setback in act 3, scene 3, when Hamlet talks himself out of killingwhile
Claudius is praying. Hamlet reasons that if he kills Claudius while he's praying, Claudius will
go to heaven. Hamlet prefers to send Claudius elsewhere and defers killing him until Claudius is
behaving badly.

HAMLET: Up, sword, and know thou a more
horrid hent.
When he is drunk asleep; or in his rage;
Or in the incestuous
pleasure of his bed;
At game, a-swearing, or about some act
That has no relish
of salvation in't
Then trip...