GCSE Maths (AQA)

435 videos | 33 hours

Proofs

Please subscribe to watch this video.

This, and all other videos, are included in our premium subscriptions.

Premium accounts get access to all videos.

Algebra Notation, Vocabulary and Manipulation

Proofs

7:15 Identities and Proof
Spec A6
Previous Changing the Subject Next Function Notation
  • A proof is a sequence of logical arguments that determine if a statement is true or false
  • Tricks can be used to help with making proofs
  • Even numbers can be written as 2n, odd numbers can be written as 2n+1
  • Expanding and factorizing are useful techniques in proofs
  • Certain facts about odd and even numbers can be helpful
  • To prove a statement is always true, show that it works all the time
  • To prove a statement is false, find a counterexample
  • The sum of two prime numbers is not always even

Please subscribe to access these revision notes.

This, and all other video notes, are included in our premium subscriptions.

Premium accounts get access to all videos and revision notes.