What is the solution of X^2 + 1 = 0 ? X^2 = -1 X = ROOT OF -1 = i Root of -1 is meaningless and does not have any physical or real attribute. So we call it imaginary number i. Now a new number system is born 1i, 2i, 3i,... Normall
Read this post on sciencecapsules.blogspot.com