Answer:
King Claudius used the royal 'we' while addressing to Hamlet because he talked to him as a king and not a father.
Step-by-step explanation:
"Hamlet" is a tragedy written by William Shakespeare. Shakespeare has been wise in his usage of his words and phrases. He always has chosen words wisely that have meaning.
In the play, King Claudius is seen using the royal 'we' while addressing to Hamlet because he never talked to him like a father but as a king. Though in his words, King Claudius would call him 'son' but he never truly accepted him as his son.
This is why Claudius used the royal 'we' while addressing to Hamlet in the play.