Venkat this function is not exponential. Rather if F(x)+F(y)= F(x)*F(y) and F(2)=33 then F(2)+F(2) is not equal to F(2)*F(2) So i think 12121212 (please give ur name) please check the question and ask again
Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi