Four vector bara, barb, barc and bard are lying in the same plane. The vectors bara and barb are equal in magnitude and inclined to each other at an angle of 120^(@). barc is the resultant of bara and barb. Further bara+barb+bard=0. If the angle between bara and bard is beta and the angle between bara and barc is alpha, find the correct relation between alpha and beta

Four vector bara, barb, barc and bard are lying in the same plane. The

1.	Four vector bara, barb, barc and bard are lying in the same plane. The vectors bara and barb are equal in magnitude and inclined to each other at an angle of 120^(@). barc is the resultant of bara and barb. Further bara+barb+bard=0. If the angle between bara and bard is beta and the angle between bara and barc is alpha, find the correct relation between alpha and beta
Answer» ANSWER :`alpha=1/2 BETA`