144 prompts matching "Subtracting a matrix from itself"
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Practice: Multiplying a whole number by a surd
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Learn: Why a surd is never left in the denominator
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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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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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Learn: Solving an equation with a single square root term
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Quiz: Checking a surd equation for extraneous roots
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Practice: Solving an equation with a surd on each side
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Learn: What a binary operation actually is
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Practice: A binary operation set out as a table
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Learn: What closure means for a binary operation
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Quiz: Testing the odd numbers for closure under addition
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Practice: Testing a set for closure under multiplication
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Learn: What it means for an operation to be commutative
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Quiz: Reading commutativity off a symmetrical operation table
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Practice: An operation that is not commutative, with a counter-example
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Learn: What it means for one operation to distribute over another
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Quiz: Left distributivity and right distributivity
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