Purchase Solution

Finding the inverse of a 2x2 matrix

Not what you're looking for?

Ask Custom Question

Find the inverse of the following matrix. Then verify that you have found the inverse.

A = mat(4 -3; 8 7).

Please see attached Word doc for a cleaner version.

Purchase this Solution

Solution Summary

A step-by-step solution is provided for finding the inverse of a 2x2 matrix. Attachment in Word included.

Solution Preview

The formula to find the inverse of a 2x2 matrix A is....

If A = mat(a b; c d), then

inv(A) = [1/det(A)] * mat(d -b; -c a). Remember that det(A) = ad-bc. So, let's just apply this formula to our example.

First, let's find the ...

Purchase this Solution


Free BrainMass Quizzes
Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Probability Quiz

Some questions on probability

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.