1. Let E = {1^k y|y {0,1}* and y contains at least k 1s, for k >=1}. Show that E is Regular

2. Let F = {1^k y|y {0,1}* and y contains at most k 1s, for k >= 1}. Show that F is Non Regular

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1. Let E = {1*yy {0,1}* and y contains at least k ls, for k > 1}. Show that E is Regular 2. Let F ={1*y\y e {0,1}* and y contains at most k Is, for k > 1}. Show that F is Non Regular