A v e c t o r A → i s r e p r e s e n t e d b y a s t r a i g h t l i n e o f l e n g t h 2 c m m a k i n g 30 ° w i t h p o s i t i v e X - a x i s i n a n t i c l o c k w i s e d i r e c t i o n . A n o t h e r v e c t o r B → i s a l s o r e p r e s e n t e d b y a s t r a i g h t l i n e o f l e n g t h 2 c m m a k i n g 30 ° w i t h n e g a t i v e X - a x i s i s c l o c k w i s e d i r e c t i o n . T h e n A → + B → i s 1 ) 2 3 i ^ + 2 j ^ 2 ) 2 3 j ^ + 2 i ^ 3 ) 2 i ^ 4 ) 2 j ^ Share with your friends Share 3 Vijay Shankar Yadav answered this Dear Student, According to question A→=2cos(30)i^+2sin(30)j^=3i^+j^B→=2cos(150)i^+2sin(150)j^=-3i^+j^HenceA→+B→=2j^ Regards 6 View Full Answer