i is defined as √-1 , which is an imaginary or complex number
thus i^2 = -1
This is correct as shown when i^2=sqrti then i=sqrt-1
"I" refers to the imaginary unit in mathematics. The imaginary unit, denoted as "i," is defined as the square root of -1. It is an essential concept in complex numbers and complex analysis. The number "i" is not a real number since there is no real number whose square is -1. However, it is highly useful in various mathematical applications, such as solving equations, representing complex numbers, and understanding the behavior of functions. If you have any further questions about "i" or complex numbers, feel free to ask!
