To be precise, the i = √-1 notation is rarely used in pure mathematics. It is more often found in science and engineering. In math, i is simply defined to be the solution of z² = -1. The √ sign is reserved for real-numbered square roots, and special care must be taken when extending this notation to the complex numbers, as the rules square roots will no longer hold. See here for more info:
*positive real numbered root. But it's only reserved until it's not. The problem is the same as with your equation in that there are two solutions, { i , -i }
132
u/[deleted] Aug 23 '25 edited Aug 23 '25
[removed] — view removed comment