Asked by Karl

Hello, I'd like to know how in developing, factoring or simplifying, we can move from:

A + ( (1 / ( (1 / ICD) + IED) )

to:


ACD *( ( - ED + I ) / (1 - ECD^2 ) )


ACDE are strictly positive real constants.
I is an imaginary number.


Thanks a lot for your help.

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