Question

find the multiplicative inverse of
$( - 5 + 4i)$
​

Answer 1

ANSWER :-

$\frac{1}{ - 5 \: + \: 4i}$

Explanation :-

In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/x . Multiplicative inverse is a number which when multiplied by x yields the multiplicative identity, 1. The multiplicative inverse of a fraction a/b is b/a. For the multiplicative inverse of a real number, divide 1 by the number. For example, the reciprocal of 5 is one fifth (⅕).