Quantum Mechanics Adjoint Operators

[adarlin]

If we have two linear operators A, and B, where A+ is the adjoint of A, how do we prove the property,

(AB)+=(B+)(A+)

 

[robb_]

Take a stab at it first.

 

[Hurkyl]

Have you done anything at all? Surely you've invoked the definitions of all terms involved?