title: How to show that left rotation is inverse of right rotation?
body: <p>I know this question is a simple question. But I am facing difficulty in grasping the concepts of AVL trees.</p>
  
  <blockquote>
    <p>How to show that the double rotations in AVL trees are inverse of each
    other ?</p>
  </blockquote>
  
  <p>Thanks in advance.</p>