Q. P, Q, R are three languages. If P & R are regular and if PQ=R, then (Solved)
1. Q has to be regular
2. Q cannot be regular
3. Q need not be regular
4. Q has to be a CFL
- c. Q need not be regular
1. Q has to be regular
2. Q cannot be regular
3. Q need not be regular
4. Q has to be a CFL