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Question

Which of the following graphs are isomorphic to each other?

a.

fig 1 and fig 2

b.

fig 2 and fig 3

c.

fig 1 and fig 3

d.

fig 1, fig 2 and fig 3

Answer: (d).fig 1, fig 2 and fig 3

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Q. Which of the following graphs are isomorphic to each other?

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