MYTUTOR SUBJECT ANSWERS

400 views

How do you add or subtract complex numbers?

A complex number has the form a+bi. We call a the 'real' bit (ie. the bit on a regular number line) and b is the 'imaginary' bit.

To add or subtract complex numbers you just add the real bits of both together and the imaginary bits of both together. (You CAN'T add a real part to an imaginary part).

For example: what is (3+2i) + (5+4i)?
Real bits: 3+5=8
Imaginary bits: 2i+4i=6i
So the answer is 8+6i

Chloe A. Mentoring -Personal Statements- tutor, GCSE Maths tutor, A L...

2 years ago

Answered by Chloe, an A Level Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

180 SUBJECT SPECIALISTS

£20 /hr

Ellie B.

Degree: Mathematics (Masters) - York University

Subjects offered: Maths, Physics+ 1 more

Maths
Physics
Further Mathematics

“Hi, my name is Ellie and I am currently studying Mathematics at the University of York. I chose York because I felt a real connection with the teachers, they made maths fun, interesting and easy. That's what I hope to do with all my s...”

MyTutor guarantee

£20 /hr

Wesley M.

Degree: Mathematics (Masters) - Bristol University

Subjects offered: Maths, Physics+ 1 more

Maths
Physics
Chemistry

“I am a current Mathematics student at The University of Bristol. Maths can be a love-hate sort of subject for many people, but with my absolute love and enthusiasm for both maths itself and the idea of inspiring others, I hope to be a...”

£20 /hr

Peter H.

Degree: Mathematics (Bachelors) - Durham University

Subjects offered: Maths, Physics+ 2 more

Maths
Physics
Further Mathematics
.STEP.

“About me: I am a Mathematics student at Durham University, and I am currently in my 3rd year. I would very much like to give assistance and help students of all abilities to reach the goals they aspire to in Maths and Physics, whether...”

MyTutor guarantee

About the author

Chloe A.

Currently unavailable: for new students

Degree: Engineering Science (Masters) - Oxford, Keble College University

Subjects offered: Maths, Physics+ 5 more

Maths
Physics
Further Mathematics
Extended Project Qualification
Chemistry
.PAT.
-Personal Statements-

“Oxford University student with lots of volunteer mentoring experience in science subjects. ”

You may also like...

Posts by Chloe

How do I multiply complex numbers?

How do you add or subtract complex numbers?

Other A Level Maths questions

How to differentiate x^2 + y^2 - 2x + 6y = 5

What is the best way to prove trig identities?

Prove that the derivative of tan(x) is sec^2(x).

What is the chain rule, product rule and quotient rule and when do I use them?

View A Level Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok