It isn't.
The appearance of Banqou's ghost is the climax. Many say it is the murder of Duncan but this is not true.
The climax is the point at which things start to resolve themselves. After Duncan's Murder things do not start to resolve themselves, things continue to happen, new lines are opened.
As well, we must keep in mind that when this play was written they had a slightly different definition of climax. It was the point at which the main character realizes his errors and the consequence poor down on him.
Macbeth sees this and starts to accept all that is falling down around him after seeing Banqou's ghost at his banquet.
Macbeth comes to a tragic end because of his one and only fatal flaw. He was a good person at the beginning; he was loyal to the king and his own country, but after listening to the witches' prophecy, he is driven by his ambition to the bloody path. He starts murdering to get what he wants( the throne)..Because he is ambitious, too-confident, and proud, he lost everything, witnessed his own downfall, and became the tragic hero of the play in which he was beheaded by Macduff.
He might represent Macbeth's conscience, with which he parts ways in killing Duncan. It may be significant that almost the last thing Banquo says to him is "[If I] still keep my bosom franchised and my allegiance clear, I shall be counselled" Macbeth is not keeping his allegiance clear at all, and he will soon find that he has lost the freedom of heart that a franchised bosom implies."
Macduff presents a particularly unpleasant picture of what will happen to Macbeth if he is captured alive.
Banquo was predicted to father kings who would eventually steal Macbeth's power. If he is dead, he cannot father kings. Macbeth also attempts to have Banquo's son murdered, but he escapes.
Macbeth sees the ghost of the recently murdered Banquo.
Banquo doesn't commit any crime but is murdered at Macbeth's command. -APEX
Banquo is his best friend. Aside from that, Banquo is well loved by many, and if he were to be killed by Macbeth, it would look bad on him. By having the murderers do it, he can mourn Banquo's death and be free of suspicion.
Macbeth says that he wishes Banquo was present at the dinner, yet Macbeth murdered Banquo. Macbeth proposed a toast to Banquo so that the Lords would not suspect Macbeth of any foul play. However, later on in this scene Macbeth betrayed himself. He thought he could see Banquos ghost, and he was acting strangely. The Lords were very confused and thought he was going mad and Lady Macbeth had to act for Macbeth and try and save their reputation.
Macbeth does not kill Banquo himself possibly because Banquo was his best friend and he could not bear to do it. Furthermore, in not committing the murder itself, he avoids being suspected of the crime.
It is not known who kills Banquo but it is Macbeth who orders for him to be murdered.
Macbeth sees the ghost of the recently murdered Banquo.
The boy murdered by Macbeth's assassins was Young Siward, the son of Siward, Earl of Northumberland. He was killed during the battle between Macbeth's forces and Siward's army.
Macbeth killed him, by hiring some murderers.
In Shakespeare's play "Macbeth," the ghost that haunts Macbeth is the ghost of Banquo, a former friend whom Macbeth has murdered in order to secure his position as king. The ghost appears during a banquet hosted by Macbeth and is only visible to him, causing Macbeth to react with guilt and terror.
Macbeth doesn't confide in Banquo because he sees Banquo as a threat to his ambition. Banquo's descendants are said to be kings according to the witches' prophecy, which poses a risk to Macbeth's position as king. Macbeth becomes increasingly paranoid and seeks to eliminate anyone who might challenge his rule.
Banquo is Macbeth's best friend.
Macbeth's best friend was Banquo. They fought together in battle before Macbeth's rise to power.
This passage reveals that Banquo is wary of Macbeth's quick rise to power and suspects that he may have obtained it through foul means. It also shows that Banquo is loyal to Duncan and values honesty and integrity, suggesting a contrast between him and Macbeth, who is willing to deceive and murder to achieve his ambitions. Overall, the passage highlights the growing tension and mistrust in Banquo's relationship with Macbeth.
In Act Three of The Tragedy of Macbeth, Macbeth hires murderers to kill Banquo and his son, Fleance. The murderers successfully kill Banquo, but Fleance manages to escape, leaving Macbeth's desire to secure the throne unfulfilled.
Banquo doesn't commit any crime but is murdered at Macbeth's command. -APEX
Banquo is his best friend. Aside from that, Banquo is well loved by many, and if he were to be killed by Macbeth, it would look bad on him. By having the murderers do it, he can mourn Banquo's death and be free of suspicion.