solve step by step with image to understand Q1. Show the change of an AVL tree when inserting 2, 4, 6, 8, 10, 9, 7, 5, 3, 1 into the tree, in this order. Q2. For the tree built in the preceding question, show its change after 2, 4, 6, 8, 10, 9, 7, 5, 3, 1 are deleted from the tree in this order.