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How do you count spanning trees in a graph?
Cayleys formula states that for a complete graph on nvertices, the number of spanning trees is n^(n-2). For a complete bipartite graph we can use the formula p^q-1 q^p-1. for the number of spanning trees. A generalization of this for any graph is Kirchhoff's theorem or Kirchhoff's matrix tree theorem. This theorem looks at the Laplacian matrix of a graph. ( you may need to look up what that is with some examples). For graphs with a small number of edges and vertices, you can find all the spanning trees and this is often quicker. There are also algorithms such as depth-first and breadth-first for finding spanning trees.
How many rows of trees if there are 100 trees and there are 5 trees in each row how many rows of trees are there?
20 trees
How many are 25 million trees?
25 million trees are 25 million trees.
How many ways can a gardener plant 30 trees in rows so that each row contains the sames number of trees?
Six ways. 15 rows of 2 trees 6 rows of 5 trees 3 rows of 10 trees and 2 rows of 15 trees 5 rows of 6 trees 10 rows of 3 trees * * * * * How about 1 row of 30 trees and 30 rows of 1 tree each?
How many trees were damaged if a storm damaged 12 percent of 6250 trees?
750 trees were damaged.
What is gabon's most useful natural resource?
Gabon's most useful resouce is the lumber from the rain forest trees.
What are the name of useful plants and trees?
there are many useful trees such as dalbergia sisoo, tectona grandis,poplar, eucalyptus and plants such as acacia augustifolia.
Make a factor tree for 81?
9x9=81. Proving that one of the factor trees for 81 is 9xp.
What are willow trees useful for?
tanning etc.
What are sloths useful for?
Sloths mainly hang in trees and eat bugs. Yum. Useful? Phft!
How do you count spanning trees in a graph?
Cayleys formula states that for a complete graph on nvertices, the number of spanning trees is n^(n-2). For a complete bipartite graph we can use the formula p^q-1 q^p-1. for the number of spanning trees. A generalization of this for any graph is Kirchhoff's theorem or Kirchhoff's matrix tree theorem. This theorem looks at the Laplacian matrix of a graph. ( you may need to look up what that is with some examples). For graphs with a small number of edges and vertices, you can find all the spanning trees and this is often quicker. There are also algorithms such as depth-first and breadth-first for finding spanning trees.
How do trees get rid of waste?
What I think about the trees is that, they shed their over-grown and no-more useful leaves in the season of Autumn. This is how I think that trees get rid of their waste.
How is monkey useful to us?
Monkeys are useful to trees, in many cases, because they eat the trees' fruits, but don't digest the seeds. Then, they disperse the seeds, (via their dung) far from the parent tree.
How is monkey useful to the tree?
Monkeys are useful to trees, in many cases, because they eat the trees' fruits, but don't digest the seeds. Then, they disperse the seeds, (via their dung) far from the parent tree.
How trees are useful to early men?
to make medicine or tool fromit
How are wild animals useful to us?
Wild animals are useful to us because they provide food. Also, they are useful in the life cycle with trees in producing oxygen for us to breathe.
Marathi essay on if there were no trees?
A Marathi essay on there being no trees is a creative and scientific writing assignment. It is meant for the writer to explain the importance of trees and life's cycle.
