If the resultant of vecP and vecQisvecR and if R^2=P^2+Q^2 then find the anglebetweenvecP and vecQ .

If the resultant of vecP and vecQisvecR and if R^2=P^2+Q^2 then find t

1.	If the resultant of vecP and vecQisvecR and if R^2=P^2+Q^2 then find the anglebetweenvecP and vecQ .
Answer» ANSWER :A::B::C