Algebraic Vectors: for |u|=3, |v|=2, |u-v|=4, find |2u-3v|

[fooballer]

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

 

[Deleted member 4993]

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

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.