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Wall for Pooja Palod

let y=a+b y* means any no 0 or more occurences of y so(a+b)* means any no of a's or any no of b's or combination of both..(so a*, b*,a*b*,b*a* all are included in it)
Aug 2, 2015 by Pooja Palod  
Is (a+b)* means any combination of a and b or any numbers of a's or any number of b's ?
Aug 2, 2015 by swagatika123  
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