sinx-30

Yikes. Probably the fusion of some of the nastier topics on the GCSE Maths course – trigonometry, and graphs. And you have to know how they transform, as well! But not to fear, this article is here to tell you all you need to know about trigonometric graphs – and how they transform, using the handy rules in this article here (best read that before this article). Ready? Then let’s get these graphs going on…

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g-mat-graph-dia03

You might have thought transformations was as simple as translating, enlarging, rotating and reflecting. Well, maybe it is – in Year 7. For the Edexcel GCSE Maths course, you need to learn about transforming any graph – known as transforming functions. Confused? Don’t panic, we’re going to explain this all here – so let’s give it a go!

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Reflections

You’ll have almost certainly seen this stuff somewhere before – probably around Year 7, 8 or even earlier. But heading back to translations, enlargements, rotations and reflections is all important for getting those easy marks in the Edexcel Unit 3 exam – so we’re going to cover it. Ready? Then let’s go for it…

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And you thought normal, straightforward, rational numbers were hard enough. Then surds came along – nasty, recurring decimals; square and cube roots, and goodness knows what else. It’s understandable that you’d be feeling a little unsure of what to do now. But really, surds are all about knowing how to manipulate them – a few handy tricks I’m going to show you here. Ready? Then let’s begin…

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And you thought it was safe to go out again. No, circle theorems are not over – we’ve got to know how to prove them as well, much like many different things in Maths. And although only one is really likely to be on the exam, we’ll cover all of the proofs for the theorems that have even the slightest chance of coming up – to see these, continue reading…

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Overview

Yikes. You thought that trigonometry was bad, and then this article came along and just told you that things only get harder from this point onwards. And they do. But not unmanageably so. This article is best visited after you’ve seen the bog-standard Trigonometry article – but if you’re ready to take the plunge, let’s get ready to move into the 3rd dimension…

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