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Question

A regular grammar for the language L = {a^nb^m | n is even and m is even}is given by

a.

S→aSb | S1; S1 → bS1a | λ

b.

S→aaS | S1; S1 → bSb | λ

c.

S→aSb | S1; S1 → S1ab | λ

d.

S→aaS | S1; S1 → bbS1 | λ

Answer: (d).S→aaS | S1; S1 → bbS1 | λ

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Q. A regular grammar for the language L = {a^nb^m | n is even and m is even}is given by

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