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1. Construct a DFA that recognizes each of the following languages: a. L1 = {w € {a, b}* | w contains at least two as and at

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1) a L = Sweda b2t I w contains alleast twoas and too bis? 0 8=3= ex= She a ta adab reu a= { 2, 2, - - Is} I= {a,b} 90-90 F

2) 2-{ strings that donat contain abbal} qu is reject stale M=(Q, 8, 8, 9, F) Q = $90, 91, 92, 93, 94} {= {a,b} 87 Totale 90

8 L { length of wis multiple of 4} a,b M= CQ, E, 8 %, F) Q-{ 2, 9, 92, 93} B = {aib} have an anda % = 20 F = {20}

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