Please see the attached file for the fully formatted problems.
What is the rank and signature of the quadratic form +/-x2+4y2+/-2z2+4xy+4xz?© BrainMass Inc. brainmass.com February 24, 2021, 2:21 pm ad1c9bdddf
Please see the attached file for the complete solution.
Thanks for using BrainMass.
What is the rank and signature of quadratic form
Solution. We can write this quadratic form in a form of matrix.
So, we have the following matrix A.
We can calculate the determinant of A easily and get det(A)=0, so A has ...
The rank and signature of a quadratic form are found. The solution is detailed and well presented.