742 prompts matching "A singular matrix, and why it has no inverse"
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Quiz: Testing the odd numbers for closure under addition
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Show All Working: Showing a set is not closed by a single counter-example
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Quiz: Reading commutativity off a symmetrical operation table
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Show All Working: An operation that is associative but not commutative
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Common Mistakes: Subtraction as an example of neither law
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Practice: Multiplication distributing over addition in ordinary arithmetic
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Spot My Mistake: Checking distributivity from two operation tables
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WAEC Prep: A rule where distributivity holds one way only
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Show All Working: Using distributivity to simplify an expression
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Common Mistakes: Distributivity on a set of three elements
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Quiz: Finding the identity element from an operation table
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Explain Back: What an inverse element is
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Practice: The law for a power raised to another power
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Practice: A fractional index with numerator one, read as a root
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Common Mistakes: Writing a root as a fractional index before simplifying
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Common Mistakes: An indicial equation solved by substitution
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Final Revision: Checking an indicial solution by substitution
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Quiz: Writing a logarithm as an index statement
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Spot My Mistake: The logarithm of the base itself
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Show All Working: The common logarithm, to base ten
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