Anaahmedr2002 Anaahmedr2002 18-10-2022 Mathématiques Answered Participez aux discussions sur FRstudy.me et obtenez des réponses pertinentes. Rejoignez notre plateforme de questions-réponses pour obtenir des réponses précises et complètes à toutes vos questions pressantes. Two vectors lie with their tails at the same point. When the angle between them is increased by 20° their scalar product has the same magnitude but changes from positive to negative. The original angle between them was
