Answer:
The number of nodes in a full binary tree of height 2 = 7
Explanation:
At each level k, of the full binary tree there are usually [tex]2^{k} \\[/tex] nodes.
So the full binary tree of height 2 has nodes= [tex]2^{0} \\[/tex] + [tex]2^{1} \\[/tex] + [tex]2^{2} \\[/tex].
which is 7.