Final answer:
Lady Macbeth convinces Macbeth to kill Duncan through manipulation and appeal to ambition.
Step-by-step explanation:
Lady Macbeth convinces Macbeth to kill Duncan mainly through manipulation through guilt and appeal to ambition. She questions Macbeth's courage and love for her, guilting him into taking action. She also appeals to his ambition, reminding him of the power and status he could gain by becoming king. Lady Macbeth uses persuasive language and emotional manipulation to push Macbeth to commit the murder.