- #1
hairy_grape
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Homework Statement
This is an example in the book that I am trying to work.
I am given L(s) = (10(s+10)) / (s(s+3)(s+5))
The transfer function T(s) = 1 / (1+L(s))
Solving for the transfer function I get T(s) = (10(s+10)) / (s^3 + 8s^2 + 25s + 100)
The process of getting the zeros is not shown in the example.
zeros (s+6.5182)(s+.7409+3.8461j)(s+.7409-3.8461j).
I have confirmed the (s+6.5182) in MATLAB then use synthetic division and quadratic formula to get other roots.
My question is how do i get the first root without using MATLAB because we are not allowed to use computers on the test.
thanks,
mike