Question: If A is the adjacenty matrix associated with a simple graph, then the ,j) entry in A*A*A*A-A^4 is the number of routes of not more

If A is the adjacenty matrix associated with a simple graph, then the ,j) entry in A*A*A*A-A^4 is the number of routes of not more than 4 edges from node i to node j the number of paths of length exactly 4 from node i to node j O the number of paths of not more than 4 edges from node i to node j O the number of paths of lengths 1, 2, or 3 from node i to node j the number of routes of lengths 1, 2, or 3 from node i to node j (the number of routes of length exactly 4 from node i to node j the number of edges joining nodes i and j
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