Write (1+2i) /(2-i) in form x+iy

(1+2i) (2+i)/(2+i)(2-i) = (2-2+4i+i)/5 = 5i/5 = i

RM
Answered by Rahil M. Further Mathematics tutor

2860 Views

See similar Further Mathematics A Level tutors

Related Further Mathematics A Level answers

All answers ▸

How do I sketch accurate graphs for rational functions in a short amount of time? (I.e. A step by step guide of sketching graphs)


Using mathematical induction, prove that n^3+2n is divisible by 3 for all integers n


write the sum cos(x)+cos(2x)+...+cos(nx) as a quotient only involving sine and cosine functions


Explain the process of using de Moivre's Theorem to find a trigonometric identity. For example, express tan(3x) in terms of sin(x) and cos(x).


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