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Question

Consider the Following regular expressions

r1 = 1(0 + 1)*
r2 = 1(1 + 0)+
r3 = 11*0

What is the relation between the languages generated by the regular expressions above ?

a.

L (r1) ⊆ L (r2) and L(r1) ⊆ L(r3)

b.

L (r1) ⊇ L (r2) and L(r2) ⊇ L(r3)

c.

L (r1) ⊇ L (r2) and L(r2) ⊆ L(r3)

d.

L (r1) ⊇ L (r3) and L(r2) ⊆ L(r1)

Answer: (b).L (r1) ⊇ L (r2) and L(r2) ⊇ L(r3)

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Q. Consider the Following regular expressions r1 = 1(0 + 1)* r2 = 1(1 + 0)+ r3 = 11*0 What is the relation between the languages generated by the regular...

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