Question

Solve the problem:-
$\left(\frac{1}{5}+i\frac{2}{5}\right)-\left(4+i\frac{5}{2}\right)$

Answer 1

Given,

$(\frac{1}{5}+i\frac{2}{5})-(4+i\frac{5}{2})$

$=(\frac{1}{5}-4)+i(\frac{2}{5}-\frac{5}{2})$

$=-\frac{19}{5}-i\frac{21}{10}$