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## Homework Statement

Perform the following complex variable calculations, using complex exponentials. Express the results in magnitude/phase form

a/(iw+a)

## Homework Equations

## The Attempt at a Solution

I just attempted this solution but it's getting me nowhere.

a/(a+iw) x (a-iw)/(a-iw) = a(a-iw)/a^2 + w^2

and as I factorize it further, I get the initial problem back. How do I transform this to the form of magnitude and phase? thank you so much.