How can you express the complex number z = 2 + 3i in the form z = r(cos x + i sinx)

First you want to draw the complez number on to an argand diagram, using which you will find the modulus and argument. This is how to do so: The modulus is to be obtained using pythagoras (which will be easier to describe using the diagram). The argument will be obtained using trigonometric rules since the line on the argand diagran will be a right angled triangle. Then the modulus and argument will be written into the form : z = [z](cos(argz) + i sin(argz)

Answered by Meghali B. Maths tutor

8741 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the coordinates of the maximum stationary point of the y = x^2 +4x curve.


Common mistakes made in A-Level exams


How do I choose which term do I differentiate/integrate when I am integrating by parts


Find the first three terms of the binomial expansion of (3 + 6x)^(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