Proof that -1 = 1 and 1 = 3
This post requires familiarity with complex numbers, in particular , and .
This is taken from a Brilliant discussion, with slight edits.
What went wrong? At which step did we go wrong? You can review the discussion to understand the subtleties of the proof.
Related to this is the following ‘proof’ that .
We will be moving the discussion for this post to this Blog post discussion board, which will allow you to respond to comments made by other students, and also vote on the explanation that you think is correct.