Q16 Share with your friends Share 1 Ujjval Chauhan answered this Dear student Let A→ and B→ are two vectors which makes an angle θ with each other. Then A→+2B→·2A→-3B→=2A→·A→-3A→·B→+4B→·A→-6B→·B→but A→·A→=A2, B→·B→=B2 and A→·B→=B→·A→=ABcosθ hence=2A2+ABcosθ-6B2 1 View Full Answer