Question: For Sigma = { 0 , 1 } , give a regular expression r such that 1 . L ( r ) = {

For \Sigma ={0,1}, give a regular expression r such that
1. L (r)={w in \Sigma * : w has at least one pair of consecutive zeros}.
2. L (r)={w in \Sigma * : w has at least one pair of consecutive ones}.

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