STATE TRUE OR FALSE

Question

1)     (L/a)a=L(the left side represents the concatenation of the languages L/a and {a})

2)     a(a/L)=L(again concatenation with {a},this time on the left,is intended)

3)     (La)/a=L

4)     a/(aL)=L

Answer 1

Only true
3)     (La)/a=L

4)     a/(aL)=L
use any language

Comments

@monty how 2nd one true plz explain??