. If w ∈ (a, b)* satisfy abw = wab, then (w) is___________

1.	. If w ∈ (a, b)* satisfy abw = wab, then (w) is___________
A.	odd
B.	even
C.	none of these
Answer» C. none of these

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. If w ∈ (a, b)* satisfy abw = wab, then (w) is___________

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