748 prompts matching "Determine command word: validity of an argument"
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Worked Example: Why the square root of a non-square whole number is irrational
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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Common Mistakes: Why a rational number added to an irrational one stays irrational
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Explain Back: Why 2 root 3 and 5 root 3 count as similar surds
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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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Final Revision: Surds that cannot be combined at all
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Final Revision: Simplifying a fraction whose numerator and denominator are both surds
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Quiz: Rationalising a denominator of the form one over root 3
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Explain Back: Simplifying the answer once the denominator is rational
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Show All Working: Checking a rationalised answer by decimal approximation
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Final Revision: Expressing a rationalised answer in the form a root b over c
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Learn: The conjugate of a compound surd expression
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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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Common Mistakes: Rationalising when both terms of the denominator are surds
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Final Revision: Checking a conjugate answer by multiplying back
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Learn: Solving an equation with a single square root term
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