755 prompts matching "The identity matrix of order three"
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Learn: What makes two surds similar
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Learn: Simplifying root 72 into its simplest form
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Show All Working: Simplifying a surd expression that contains brackets
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Show All Working: Checking a rationalised answer by decimal approximation
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Learn: Solving an equation with a single square root term
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Show All Working: Finding a and b when a plus b root 2 equals a given surd
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Common Mistakes: A surd equation that has no real solution
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Learn: What a binary operation actually is
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Show All Working: Evaluating a repeated operation such as a*(b*c)
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Common Mistakes: A binary operation that is ordinary addition in disguise
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Learn: What closure means for a binary operation
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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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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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Show All Working: An element with no inverse under a given operation
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Show All Working: Simplifying an expression with letters and indices
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Common Mistakes: Writing a root as a fractional index before simplifying
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Show All Working: A word problem that leads to an indicial equation
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Common Mistakes: An indicial equation solved by substitution
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