A complex number a + bi, where i = $\displaystyle \sqrt[root]{-1}$, can be represented by the pair (a,b). How could you use only three real number multiplications to obtain (e,f), the product of a + bi and c + di?
A complex number a + bi, where i = $\displaystyle \sqrt[root]{-1}$, can be represented by the pair (a,b). How could you use only three real number multiplications to obtain (e,f), the product of a + bi and c + di?