If the complex number z = 5 + 4i, work out 1/z.

1/(5 + 4i) * (5 - 4i)/(5 - 4i) = (5 - 4i)/41

OG
Answered by Odin G. Further Mathematics tutor

3633 Views

See similar Further Mathematics A Level tutors

Related Further Mathematics A Level answers

All answers ▸

How can we solve a limit having an indetermination of the type 0/0 or infinity divided by infinity?


Prove that sum(k) from 0 to n is n(n+1)/2, by induction


3 points lie in a plane; P1=i+2j+3k, P2=-3i+5j+2k, P3=i+2j+k. Find the Cartesian equation of the plane


Show that the sum from 1 to n of 1/(2n+1)(2n-1) is equal to n/(2n+1) by Induction


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning