Question: Write a regular expression for the language consisting of strings that have n copies of the letter a followed by the same number of copies

Write a regular expression for the language consisting of strings that have n copies of the letter a followed by the same number of copies of the letter b where n

> 0 .

For example strings ab

,

aabb, aaaabbbb, are in the language but a abb, ba

,

aaabb are not.

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