1 votes 1 votes ukn asked Jan 20, 2017 ukn 323 views answer comment Share Follow See 1 comment See all 1 1 comment reply rahul sharma 5 commented Jan 20, 2017 reply Follow Share Is this equivalent to a(a+b)^1 ?I dont see any string in above question will be missed,plz check? 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes for minimal strings choose minimal from all brackets. So, aa is fixed from first bracket (only one choice). From next two brackets, we have two choices each that is 2*2 =4 total possibilities. so 4 is the answer. Lucky sunda answered Jan 20, 2017 Lucky sunda comment Share Follow See all 0 reply Please log in or register to add a comment.