MHB Understanding Determinants of 2 x 2 Matrices

  • Thread starter Thread starter ertagon2
  • Start date Start date
ertagon2
Messages
36
Reaction score
0
Can some1 help me with these?
View attachment 8066
 

Attachments

  • maths62_2.png
    maths62_2.png
    8.7 KB · Views: 106
Physics news on Phys.org
As with your last post most of these are plug-n-chug. Do you even know the basics definitions? How do you define the determinant of a 2 x 2 matrix? It's a simple definition!

And if you can't answer 7 as well then you shouldn't even be in the class.

Please show any work that you have been able to do for these.

-Dan
 
Thread 'Derivation of equations of stress tensor transformation'
Hello ! I derived equations of stress tensor 2D transformation. Some details: I have plane ABCD in two cases (see top on the pic) and I know tensor components for case 1 only. Only plane ABCD rotate in two cases (top of the picture) but not coordinate system. Coordinate system rotates only on the bottom of picture. I want to obtain expression that connects tensor for case 1 and tensor for case 2. My attempt: Are these equations correct? Is there more easier expression for stress tensor...
Back
Top