Collinear Points

Collinear Points

Learn how to show that three points lie in a line (collinear) using vectors Showing that three points lie in a straight line (i.e. collinear) is a straight-forward process. It can be achieved using gradients or vectors. In this video I explain the vector method which...
Proof by Induction

Proof by Induction

Learn how to use proof by induction by following this example FollowFollowFollow All Mathematical theorems, formulas and rules have to be proven to be true. Mathematical proofs – demonstrations that a rule or theorem is true – can be straight-forward or...