755 prompts matching "The complement rule used in a counting problem"
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Practice: Deciding whether root 16 is rational or irrational
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Explain Back: Where the surds sit on the number line
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Quiz: Reducing two surds to the same root in order to compare them
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Show All Working: Deciding whether two given surds are equal without a calculator
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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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Learn: Why a surd is never left in the denominator
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Quiz: Rationalising a denominator of the form one over root 3
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Practice: Rationalising a denominator with a whole number multiplying the surd
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Explain Back: Simplifying the answer once the denominator is rational
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Spot My Mistake: Rationalising and then cancelling a common factor
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Worked Example: Why multiplying by the conjugate clears the surd
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Quiz: Rationalising a denominator of the form one over 2 plus root 3
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Practice: Rationalising a denominator of the form a plus root b over c minus root d
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Explain Back: The difference of two squares applied to surd conjugates
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WAEC Prep: Expressing the answer in the form a plus b root c
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Show All Working: A conjugate where the surd term comes first
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