Question

Will medal!!! And fan!!
if v1=(2 -5) and v2=(4 -3) then the angle between the two vectors is? need some help

Answer 1

AS formula for dot or scaler product of two vectors is

a.b=|a||b| cos theta
=> cos theta = a.b/|a||b|

takin cos inverse on both sides gives..

theta= cos^-1 {a.b/|a||b|}

now plug values and get result..