755 prompts matching "determine whether the argument 'if p then q; p; therefore q' is valid using a tr"
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Common Mistakes: Why a rational number added to an irrational one stays irrational
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Spot My Mistake: Why root 8 and root 2 turn out to be similar
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WAEC Prep: Ordering a list of surds by size
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Common Mistakes: Expressing root 50 as a multiple of root 2
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Learn: Simplifying root 72 into its simplest form
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Worked Example: Rationalising a denominator that is a single surd
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WAEC Prep: Rationalising a denominator inside a larger expression
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Show All Working: Checking a rationalised answer by decimal approximation
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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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Spot My Mistake: Solving a surd equation that leads to a quadratic
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WAEC Prep: Equating the rational and the irrational parts of an equation
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Common Mistakes: A surd equation that has no real solution
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Explain Back: A binary operation defined on the integers
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Spot My Mistake: A binary operation defined on a set of three elements
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Common Mistakes: A binary operation that is ordinary addition in disguise
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Spot My Mistake: Reading closure off an operation table
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WAEC Prep: A set closed under one operation but not another
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Show All Working: Showing a set is not closed by a single counter-example
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