Matrix theory
Not what you're looking for?
Prove that A is normal if and only if A-A^* and A+A^* commute.
Purchase this Solution
Solution Summary
This is a proof regarding normal matrices.
Solution Preview
See the attachment.
is normal if and only if and commutes.
Note, .
Proof:
: If is normal, then there exists a unitary matrix such that ...
Purchase this Solution
Free BrainMass Quizzes
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.
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
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