The rectangular components of a vector lying in xy plane are 1 and p + 1. If co-ordinate system is turned by 30^(@), they are p & 4 respectively the value of .p. is

The rectangular components of a vector lying in xy plane are 1 and p +

1.	The rectangular components of a vector lying in xy plane are 1 and p + 1. If co-ordinate system is turned by 30^(@), they are p & 4 respectively the value of .p. is
Answer» 2 4 3.5 7 Answer :D