733 prompts matching "Solving an equation by first applying a Pythagorean identity"
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Learn: What makes two surds similar
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Worked Example: What makes two surds equal
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Quiz: Reducing two surds to the same root in order to compare them
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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: Adding two surds that simplify to the same root
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WAEC Prep: Squaring a single surd
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Learn: Why a surd is never left in the denominator
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Worked Example: Rationalising a denominator that is a single surd
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Quiz: Rationalising a denominator of the form one over root 3
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WAEC Prep: Rationalising a denominator inside a larger expression
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Common Mistakes: Rationalising a denominator of the form root a over root b
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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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Common Mistakes: Rationalising when both terms of the denominator are surds
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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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Quiz: Evaluating a*b from a given rule
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Spot My Mistake: A binary operation defined on a set of three elements
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