If given grammar is as -
S - > SS / (S) / e
then .. to derive the string ( ( () () ) () ).. following steps to be followed -
1.S - > (S)
2.S - > (SS) // S ->SS
3.S - > ( (S) S ) // S - > (S)
4.S - > ( (SS) S ) // S -> SS
5.S -> ( ( S S) (S) ) // S - > (s)
6.S -> ( ( S (S)) (S) ) // S - > (s)
7.S -> ( ( (S) (S)) (S) ) // S - > (s)
8.S -> ( ( (S) (S)) () ) // S - > e
9.S -> ( ( (S) ()) () ) // S - > e
10.S -> ( ( () ()) () ) // S - > e
Ans- 10 steps