F fooballer New member Joined May 11, 2008 Messages 1 May 11, 2008 #1 yeah so im having trouble with this question here on algebraic vectors if |u| =3, |v|=2, and |u-v|=4, find the exact value of |2u-3v|. im not sure where to start
yeah so im having trouble with this question here on algebraic vectors if |u| =3, |v|=2, and |u-v|=4, find the exact value of |2u-3v|. im not sure where to start
D Deleted member 4993 Guest May 11, 2008 #2 fooballer said: yeah so im having trouble with this question here on algebraic vectors if |u| =3, |v|=2, and |u-v|=4, find the exact value of |2u-3v|. im not sure where to start Click to expand... Please show us your work/thought so that we where to begin to help you. By knowing |u-v| and |u| & |v| - you should be able calculate the angle between u and v. 2u and 3v will have the same angle but different magnitude.
fooballer said: yeah so im having trouble with this question here on algebraic vectors if |u| =3, |v|=2, and |u-v|=4, find the exact value of |2u-3v|. im not sure where to start Click to expand... Please show us your work/thought so that we where to begin to help you. By knowing |u-v| and |u| & |v| - you should be able calculate the angle between u and v. 2u and 3v will have the same angle but different magnitude.
