Describe a how you use vectors to determine if three given points are collinear ?
Test your method using the set of points p(-3,1) q(2,4) r(5,6)
Hello,
Two vectors and are colinear if there exists a real number different from 0 such as
If three points are colinear, then two vectors joining two of them are colinear.. This means that if there are A, B and C three different points, and that you want to show that they are colinear, you just have to prove that and , for example, are colinear.
Both are in use. About 10 years or more ago there was in fact a bitter argument afoot about the use of the so-called ‘blackboard font’. There were some very prominent names in the editorial circles who were against. I have forgotten the details. For me I don’t really care. When I am just quickly typing it is easier to use \Re rather than \mathbb{R}. I tend use the latter if I am also using MathType.