Question

represnt (1/1-4i-2/1+i)(3-4i/5+i) form of a+ib​

Answer 1

Solution:

» [ 1/(1 - 4i) - 2/(1 - i) ] (3 - 4i)/(5 + i)

= [ (1 + 4i)/17 - (1 + i) ] [ (19 - 17i )/26 ]

= [ - (17 + 13i)/17 ] (19 - 17i)/26

= - (544 - 42i)/442

= -544/442 + 42/442 i

= - 272/221 + 21/221 i