This document outlines the key equations necessary for the Pure Mathematics (year 2 only) (Pearson Edexcel) course. Note that the specification may be subject to change in the future, meaning these notes may or may not have all the required information.
Concave: 𝑓 ′′(𝑥) ≤ 0 Distance from origin to
Convex: 𝑓 ′′ (𝑥) ≥ 0 (𝑥, 𝑦, 𝑧) is
Point of inflection: 𝑓 ′′ (𝑥)
√𝑥 2 + 𝑦 2 + 𝑧 2
changes sign
VECTORS VECTORS
𝑝 𝑎 = 𝑥𝑖 + 𝑦𝑗 + 𝑧𝑘 makes
𝑝𝑖 + 𝑞𝑗 + 𝑟𝑘 = 𝑞 an angle with the positive
𝑥
𝑟 x-axis then 𝑐𝑜𝑠𝜃𝑥 = |𝑎|
Same for y and z
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller amina101. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.46. You're not tied to anything after your purchase.