Undergrad Pole Identification Using Block Diagram Reduction

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The discussion revolves around finding poles from a closed loop transfer function using block diagram reduction. The user expresses confusion about how to handle the summation point in the block diagram, questioning whether it can be removed alongside the feedback loop. There is a suggestion to move the post to a dedicated electrical engineering section for better assistance. The user is awaiting help from a mentor and expresses frustration over the lack of responses. Clarification on the summation point's role in the reduction process is sought.
Hraabo
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Hello I hope someone can help me, as i am kinda stuck for the moment.
As you can see, the assignment states that I need to find the poles from the closed loop transfer function.

I plan on doing so, by using block diagram reduction method.

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241903
This is as fare as I've come, and can't come further, even though I am pretty sure that it is possible. The summation point confuses me, how do I remove it? I could remove the feedback loop, but the summation point would still be there, or am I wrong?

Any help would be nice.
 
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@Hraabo,
There is a section here specially for EE. It may be better to post it there.
 
Is that so? Maybe Someone Can Move the post then?

And Sorry for the trouble
 
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No problem, I told a mentor, he should be having a look at it soon.
 
Bump - No help? :S
 

Thread 'About the definition of topological manifold using closed sets'

We all know the definition of n-dimensional topological manifold uses open sets and homeomorphisms onto the image as open set in ##\mathbb R^n##. It should be possible to reformulate the definition of n-dimensional topological manifold using closed sets on the manifold's topology and on ##\mathbb R^n## ? I'm positive for this. Perhaps the definition of smooth manifold would be problematic, though.
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