MYTUTOR SUBJECT ANSWERS

353 views

How do you invert a 2x2 matrix?

Take a matrix A=(acbd), where a,b,c,d are numbers.

First find the determinant. This is a*d-b*c.

Now, rearrange the matrix to become (d-c-ba). Divide this by the determinant, to have A-1=1/(ad-bc)(d-c-ba). This is the inverse of A.

Yaniv P. GCSE Maths tutor, GCSE Physics tutor, GCSE Further Mathemati...

2 years ago

Answered by Yaniv, an A Level Further Mathematics tutor with MyTutor

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

69 SUBJECT SPECIALISTS

£24 /hr

Osian S.

Degree: Mathematics (Masters) - Warwick University

Subjects offered: Further Mathematics , Maths

Further Mathematics
Maths

“Hi, I'm Osian, a Master's student at the University of Warwick. I've had fun with mathematics from a young age, and I hope to be able to instill this passion for mathematics in you, through my tutorials! Throughout my time at Warwick,...”

£20 /hr

Ben J.

Degree: Mathematics (Masters) - Durham University

Subjects offered: Further Mathematics , Maths

Further Mathematics
Maths

“Friendly tutor with perfect academic record happy to help you enjoy Maths and get the grades you need! :)”

£20 /hr

Andrew D.

Degree: Mathematics (Masters) - Warwick University

Subjects offered: Further Mathematics , Maths

Further Mathematics
Maths

“About me Hi, I'm Andrew. I'm currently going into my second year studying maths at the University of Warwick. I find maths incredibly fascinating, as my passion stems from the idea thatmaths is everywhere and is fundamental to underst...”

About the author

Yaniv P.

Currently unavailable: until 22/12/2015

Degree: Mathematics (Masters) - Bristol University

Subjects offered: Further Mathematics , Physics+ 1 more

Further Mathematics
Physics
Maths

“First year Maths undergraduate at the University of Bristol. Looking to tutor Maths and Physics at GCSE and A-Level.”

MyTutor guarantee

You may also like...

Posts by Yaniv

Finding the derivative of a polynomial.

How do you invert a 2x2 matrix?

How do you solve the integral of ln(x)

How to determine the number of unique real roots of a quadratic equation.

Other A Level Further Mathematics questions

What modules have you done before?

Find the inverse of the general 2x2 matrix A= ([a, b],[c, d]) when does this inverse exist?

How do I solve a simultaneous equation with more unknowns than equations?

Prove by induction that n^3+5n is divisible by 3 for every natural number.

View A Level Further Mathematics 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