This video is an example of answering a question using the sine rule: "Joe has a field in the form of a triangle ABC, with dimensions as shown. (a) Calculate length AB (b) Calculate the area of the field" The question is aimed at around grade 7 and the topic appears in all the main examination boards, including Edexcel, AQA and OCR. The sine rule is fairly popular and, … [Read more...]

## GCSE maths iteration – part 3 (fairly difficult)

This video gives an explanation of how to work with difficult GCSE maths iteration questions, sometimes called 'iterative formula.' The questions can be extremely wordy ... but should be absolutely fine once you get the general idea. There's also some additional examples at the end of the page. The question is aimed at GCSE maths grade 7+ calculator paper. (a) … [Read more...]

## GCSE mathematics iteration part 2 – GCSE maths grade 7+

This video gives an explanation of how to work with GCSE mathematics iteration type questions, sometimes called 'iterative formula.' They can be extremely wordy ... but should be absolutely fine once you get the general idea. I'll post some additional videos, with similar questions, in the next few days. The question is aimed at GCSE maths grade 7+ calculator … [Read more...]

## How to work with iteration – GCSE maths grade 7+

This video gives an explanation of how to work with iteration, sometimes called iterative formula. It's extremely wordy ... but should be absolutely fine once you get the general idea. I'll post some additional videos, with similar questions, in the next few days. The question is aimed at GCSE maths grade 7+ calculator paper. (a) Show that when f(x) = 0, the equation f(x) … [Read more...]

## How to work with an algebraic equation – GCSE Maths Grade 7+

This video is about how to work with an algebraic equation, which might be a useful skill - particularly if you are aiming to study maths at a higher level. In this example, the equation needs to be manipulated to find the value of x and y. It looks a little tricky at first, but is fairly straightforward once you complete the expansion. The question is aimed at … [Read more...]