This interactive quiz is suitable for National 5 maths students studying working with surds. Quiz: Simplifying expressions using the laws of indices - N5 This interactive quiz is suitable for National ...

First we need to complete the square to get the coordinates of the turning point. \(y = {x^2} + 2x + 3\) \(y = {(x + 1)^2} - 1 + 3\) \(y = {(x + 1)^2} + 2\) Therefore ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...