584 prompts matching "Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted"
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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Final Revision: Approximating a surd to three decimal places
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Learn: What makes two surds similar
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Quiz: Reducing two surds to the same root in order to compare them
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Learn: Simplifying root 72 into its simplest form
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Quiz: Subtracting one surd from another
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WAEC Prep: Squaring a single surd
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Show All Working: Simplifying a surd expression that contains brackets
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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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Spot My Mistake: Rationalising and then cancelling a common factor
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WAEC Prep: Rationalising a denominator inside a larger expression
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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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Spot My Mistake: Simplifying the denominator once the conjugate has been used
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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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Quiz: Checking a surd equation for extraneous roots
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