755 prompts matching "The identity that A times its adjoint gives the determinant times the identity"
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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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Show All Working: Simplifying a surd expression that contains brackets
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Common Mistakes: Expanding the product of two surd brackets
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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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Practice: Rationalising a denominator with a whole number multiplying the surd
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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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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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Show All Working: A conjugate where the surd term comes first
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Spot My Mistake: Solving a surd equation that leads to a quadratic
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Common Mistakes: A surd equation that has no real solution
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Common Mistakes: A binary operation that is ordinary addition in disguise
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Quiz: Testing the odd numbers for closure under addition
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Final Revision: Why closure is checked before any other property
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Worked Example: Testing a*b against b*a for a given rule
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