Example 1.002 TOC GATE CS 2003 (concatenation and group theory)

preview_player
Показать описание
TOC problem asked in GATE CS 2003(concatenation and group theory)
Рекомендации по теме
Комментарии
Автор

Please upload some more videos on programming, networks and DBMS.. We don't get these type of coachings..these lectures are really helpful..thank u very much

soudiptadutta
Автор

we cant able to proof that its in group..because we have problem with empty string..and in last option its given that if we remove null string that it will be a group..then why not we go with option 4?? plzzzz clarify my doubt...

pujanandy