Prove by induction the following: Every binary tree with n internal nodes can have at most n+1 external nodes. If you could prove it similary, based on the example picture given below please, so I can understand the problem better, please. Thank you for your time. I realize what we need to do is establish the base step, and then we can use the previously defined steps to make our assumption, but when it comes to trying to figure out the general equation for the subtree, I am having a lot of trouble, Note: this is not the problem, the problem is up above, just if you don't mind, prove it similarly to this way so I can prove like how my teacher wants it proved. Thank you again for your time.

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