Need Of Complex Numbers
Some quadratic equations which have no solutions in real numbers.
In order to find the solutions of above given or similar quadratic equations, the symbol ” i ” was used. Euler was the first person to introduce the symbol ” i “. where
Gauss ( 1777-1855) was a German Mathematician and was a first person to prove in satisfactory manner that there are some algebraic equations which have real coefficients have complex roots in the form of .
Note: complex and irrational roots always occur in pairs.