For the signal flow graph shown in fig below the graph determinant Δ – McqOptions

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1.	For the signal flow graph shown in fig below the graph determinant Δ is
A.	1-bc-fg-bcfg+cigj
B.	1-bc-fg-cigj+bcfg
C.	1+bc+fg+cigj-bcfg
D.	1+bc+fg+bcfg-cigj
Answer» E.

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