I found this question on the madasmaths site – his resources are fabulous.
I am not sure I would have been able to do this in an exam.
I have split my solution into 6 images and there is a pdf version at the bottom
PDF version of my solution
Monthly Archives: April 2024
Sketching Subsets of the Complex Plane – Problem 2
Filed under Complex Numbers, Sketching Complex Regions
Divisibility Rules – Integers 1 to 10
I think it’s useful to knot the divisibility rules, at least up to ten. Although, let’s face it, 7 is a bit tricky.
Divisibility Rules pdf
Filed under Arithmetic, Divisibility
Integrating by Trigonometric Substitution
Integrating by using a trigonometric substitution can be quite trick for some students.
For example, this question from OCR 4726 June 2009 Question 6
Filed under Integration, Trigonometric Substitution
Factorising Non-Monic Trinomials
I factorise trinomials by using the grouping method, I will show you what I mean
But one of my students showed me a different way
I have put in more steps than is necessary. I think this might be a quicker method.
Filed under Factorising, Quadratics