Question: Get maple to recognize this complex number

 

I have rearranged a complex impedence equation into the form of a complex number 

z := R*omega^2*C^2/(omega^2*C^2+R^2)+I*(R^2*omega*C+omega^3*C^2*L+R*omega^2*C^2)/(omega^2*C^2+R^2)

But Maple doesn't seem to recgonise it as a complex number.  I am trying to find the modulus and argument is terms of omega whenL= 572mH, R = 100­ and C = 40microF

 

 

 

 

 

Maple doesn't return anything correct, just the orginal equation for both modulus and argument.

I am new to Maple so any help will be greatly appriciated

Cheers
Rich

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