z = 50 / (3+4i). What is z in a+bi form?

Multiply by complex conjugate

z = 50 / (3+4i) * (3-4i) / (3-4i)

Rationalise

z = 50 ( 3 - 4i) / 25 = 6 - 8i.

IM
Answered by Ignacio M. Further Mathematics tutor

6290 Views

See similar Further Mathematics A Level tutors

Related Further Mathematics A Level answers

All answers ▸

How to calculate the integral of sec(x)?


how do I do proofs by induction?


Given y=arctan(3e^2x). Show dy/dx= 3/(5cosh(2x) + 4sinh(2x))


Prove by induction the sum of the natural numbers from 1 to n is n(n+1)/2


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences