Which of the following languages is/are regular? L1: {wxwR ⎪ w, x ∈ {a, b}* and ⎪w⎪, ⎪x⎪ >0} wR is the reverse of string w L2: {anbm ⎪m ≠ n and m, n≥0 L3: {apbqcr ⎪ p, q, r ≥ 0}

Which of the following languages is/are regular? L1: {wxwR ⎪ w, x �

1.	Which of the following languages is/are regular? L1: {wxwR ⎪ w, x ∈ {a, b}* and ⎪w⎪, ⎪x⎪ >0} wR is the reverse of string w L2: {anbm ⎪m ≠ n and m, n≥0 L3: {apbqcr ⎪ p, q, r ≥ 0}
A.	L1 and L3 only
B.	L2 only
C.	L2 and L3 only
D.	L3 only
Answer» B. L2 only

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Which of the following languages is/are regular? L1: {wxwR ⎪ w, x ∈ {a, b}* and ⎪w⎪, ⎪x⎪ >0} wR is the reverse of string w L2: {anbm ⎪m ≠ n and m, n≥0 L3: {apbqcr ⎪ p, q, r ≥ 0}

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