Just taking a quick browse, I have to get back to work, but first things first, try simplifying your impedances first. I always work in simplified equivalents. I also noticed your above formula is missing a lot of brackets, use this to force proper procedure out of your calculator. It does not follow BEDMAS, so you have to tell it to ;)
The problem is that I don't think I should simplify more, the examples in my book use this level of information, therefore I don't know how to simplify it. Anyway I'm grateful for any ideas
When it comes to the parantheses: h21 h11 etc are one part eg. there is no h*21 so there shouldn't be any problems getting this through a calculator as intended.
Any chance you could repost your original question?? (I see you edited your initial post so that we no longer see the question)..
I (and believe many others) am curious what question was asked and find it interesting reading the suggestions made to help you find a solution...
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