compiler design

Question

consider the grammer

 

E->E+E / E*E / (E) /a

THE NUMBER OF RIGHT MOST DERIVATION FOR THE SENTENCE (a) is ___________________________

Comments

i think (a) cant be derived from given grammer??

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I think there is a mistake in ques, this rule should be E -> (E) instead of E -> E (E) 

Answer 1

For this given grammar the answer will be only one

Bcz E->(E)->(a)

For the given grammar u can't find more than one possibility to derive (a)

Answer 2

I think Only One Right Most Derivation possible for the sentence (a).

E -> (E)

E-> a
 

Correct me if I am wrong.

Answer 3

Only 1

E->(E)

  ->(a)