If bar(P) - bar(Q) vec(R ) and P = Q = R. Angle between bar(P) and bar(Q) " is " beta. Angle between bar(P) " & " bar(R ) " is " alpha. If ""^(beta)//_(alpha) value is n/2 find n.

If bar(P) - bar(Q) vec(R ) and P = Q = R. Angle between bar(P) and bar

1.	If bar(P) - bar(Q) vec(R ) and P = Q = R. Angle between bar(P) and bar(Q) " is " beta. Angle between bar(P) " & " bar(R ) " is " alpha. If ""^(beta)//_(alpha) value is n/2 find n.
Answer» ANSWER :2