Which of the following regular expressions represents the set of strings which do not contain a substring ‘rt’ if ∑= {r,

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answerhappygod
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Which of the following regular expressions represents the set of strings which do not contain a substring ‘rt’ if ∑= {r,

Post by answerhappygod »

a) (rt)*
b) (tr)*
c) (r*t*)
d) (t*r*)
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