Identities (AQA GCSE Maths): Flashcards
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Practise the cards
10 cards from this deck
What is an identity?
What is an identity?
Mathematical statement that is always true, regardless of variable values
Symbol used for identities
Symbol used for identities
≡ (not =)
Identity vs equation difference
Identity vs equation difference
Identity always true; equation only for specific values
Can you use balance method on identities?
Can you use balance method on identities?
No, manipulate each side separately
How to prove an identity
How to prove an identity
Start with one side, use algebra, show all working
where is whole number
where is whole number
Always even
Even × any number
Even × any number
Even
Odd × odd
Odd × odd
Odd
Odd × even
Odd × even
Even