755 prompts matching "Learn: The Pythagorean identity, sin squared plus cos squared equals one"
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Learn: Simplifying root 72 into its simplest form
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Worked Example: Adding two surds that simplify to the same root
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Quiz: Subtracting one surd from another
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Spot My Mistake: Dividing one surd by another
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Common Mistakes: Expanding the product of two surd brackets
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Explain Back: Simplifying the answer once the denominator is rational
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Worked Example: Why multiplying by the conjugate clears the surd
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Explain Back: The difference of two squares applied to surd conjugates
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Spot My Mistake: Simplifying the denominator once the conjugate has been used
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Show All Working: A conjugate where the surd term comes first
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Explain Back: Solving an equation where the surd must be isolated first
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Learn: What a binary operation actually is
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Worked Example: Reading the symbol used for a binary operation
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Explain Back: A binary operation defined on the integers
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Final Revision: Deciding whether a given rule really is a binary operation
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Learn: What closure means for a binary operation
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Worked Example: Testing the even numbers for closure under addition
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Quiz: Testing the odd numbers for closure under addition
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Explain Back: Testing the integers for closure under division
I have just studied testing the integers for closure under division in my SS1 Further Math
Final Revision: Why closure is checked before any other property
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