Hi,

I am working on a Linear Algebra problem set and am running into a problem (which is probably basic, I just forget how the operator works).

Here is the question:#1 Show that norm of the following expression is equal to 1.

Where the Capital X denotes a matrix.

What I am confused on is how to deal with the matrix which is raised to the exponent 1/2. Do I treat this as a regular exponent? Or, is there another way to treat these exponents for matrices?