Solving for Attenuation Constant with Power Relations

[Mtz20]

Hello.
In fields and waves and transmission lines
We have a attenuation constant formula with power relations:
1-

Alpha = 1/2R0(R+G|Z0|^2)

2-Also we can calculate attenuation constant from these :

Z0= radical[(R+jwL) / (G+jwc)]
gamma = radical[(R+jwL)(G+jwc)]

I want show alpha from 1 equation is equal alpha from 2 equations.
What should i do ? Please help me.

 

[scottdave]

Where is your Alpha in the second set of equations? I only see Z0 and gamma.