Find the maximum and minimum moduli of in the closed disk .
Now, by the maximum modulus theorem, the maximum of is on . Let , . Then and then I get a little confused. I do lose the square root part of the modulus at this point, right?
Find the maximum and minimum moduli of in the closed disk .
Now, by the maximum modulus theorem, the maximum of is on . Let , . Then and then I get a little confused. I do lose the square root part of the modulus at this point, right?