755 prompts matching "Arrangements in which two particular objects must be kept apart"
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Learn: What a binary operation actually is
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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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Show All Working: Evaluating a repeated operation such as a*(b*c)
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Learn: What closure means for a binary operation
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Spot My Mistake: Reading closure off an operation table
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Show All Working: Showing a set is not closed by a single counter-example
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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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Spot My Mistake: Testing (a*b)*c against a*(b*c)
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Show All Working: An operation that is associative but not commutative
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Show All Working: Using distributivity to simplify an expression
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Quiz: Finding the identity element from an operation table
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Practice: Why an identity element must work from both sides
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Spot My Mistake: Finding the inverse of a given element
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Show All Working: An element with no inverse under a given operation
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Learn: Reading index notation, the base and the exponent
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Quiz: The law for dividing powers of the same base
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Show All Working: Simplifying an expression with letters and indices
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Learn: Why any non-zero number to the power nought is one
You are my personal SS1 Further Mathematics tutor. Teach me why any non-zero number to the