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Firstly I apologise that I'm even asking this.... I have gone over it so many times now I don't know what to believe is the right answer, can someone please help me out and let me know where I'm going wrong PLEASE

Ok so first is the inductive impedance

Z= SQRT R^2 + (WL)^2

R = 2.7*10^6 2.7MΩ

W= 2piF = 2pi*10 2pi*10Hz

L= 300*10^-3 300mH

R^2 = 7.29*10^12

WL = 18.84955592 WL^2 = 355.3057584

R^2+WL^2 = 7.29*10^12 + 355.3057584 =7.29*10^12

How can that be right? I may of well just squared R to start with... so what am I doing wrong???

Second,

Impedance in RLC circuits

Z= SQRT R^2 +(Xl - Xc)2

W = 2piF = 628318.5307

F = 100*10^3 = 100000

C = 300*10^-6 = 3*10^-4

L = 300*10^-3 = 0.3

R = 2.7*10^6 = 2700000

Xl = WL = 188495.5592

Xc = 1/WC = 5.30516477*10-3

so R^2 +(Xl - XC)^2 = 7.325530574*10^12 and to me that just does not seem the right answer??

Can you guys see where I would be going wrong? and if so how do I put it in to my calculator?

Many thanks