Two forces P and Q are in ratio `P:Q=1:2`. If their resultant is at an angle `tan^(-1)((sqrt3)/(2))` to vector P, then angle between P and Q is :

The angles between P+Q and P-Q will be

The angles between P+Q and P-Q will be

The magnitudes of two vectors vecP and vecQ differ by 1. The magnitude of their resultant makes an angle of tan^(-1)(3//4) with P. The angle between P and Q is

The magnitudes of two vectors vecP and vecQ differ by 1. The magnitude of their resultant makes an angle of tan^(-1)(3//4) with P. The angle between P and Q is

If P+Q=R and |P|=|Q|= sqrt(3) and |R| ==3 , then the angle between P and Q is

If P+Q=R and |P|=|Q|= sqrt(3) and |R| ==3 , then the angle between P and Q is