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The relation between size of a maximum matching M_{d} in a disconnected graph G on vertex set V and the size of a maximum matching M_{c} of a connected graph G on same vertex set V is

(A) M_{d} < M_{c}

(B) M_{d} =M_{c}

(C)M_{c} \geqM_{d} 

(D) None of the above.

asked in Mathematical Logic by Active (1.2k points) | 77 views
think c is the answer. Comment if right
No its B they have given
Then i think they have given it wrong. Take 4 vertex and make a square. No of matching is 2 while now take a disconnected graph in which no edge is there . Matching = 0. so md < mc graph. now for equal case take the same vertex set make 2 components such that each component contain 2 vertex and one edge. so now maximal matching in such a graph is 2. which is equal to the mc.

Have a look at this:

Left half is disconnected graph.

So, here, Md<Mc.

This was from Gatebbok, right?

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