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
Mathématiques
anaahmedr2002
Question
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
increased by 20° their scalar product has the same magnitude but changes from
positive to negative. The original angle between them was