Consider an operation R that for a given traversal method t processes nodes in the opposite order than t and an operation C that processes nodes of the mirror image of a given tree using traversal method t. For the tree traversal methods—preorder, inorder, and postorder—determine which of the following nine equalities are true:
R(preorder) = C(preorder)R(preorder) = C(inorder)R(preorder) = C(postorder)R(inorder) = C(preorder)R(inorder) = C(inorder)R(inorder) = C(postorder)R(postorder) = C(preorder)R(postorder) = C(inorder)R(postorder) = C(postorder)
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