Under Windows, PNG images are supported as long as you have the __________ extension registered.

The FV function requires ________ arguments

Fill in the blank(s) with correct word

Answer the following statements true (T) or false (F)

1) There are four basic ways to traverse a tree, and they are all implemented recursively. 2) A decision tree cannot be used as the basis for an expert system. 3) In an inorder traversal, the elements of a tree are visited in order of their distance from the root. 4) In a postorder traversal, the root is the last element visited in the tree. 5) Recursive methods that work with binary trees are often implemented with a private support method.