727 prompts matching "testing an argument for validity"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
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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Final Revision: Deciding whether a given rule really is 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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Common Mistakes: Closure on a set of three elements under a stated rule
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WAEC Prep: A rule where distributivity holds one way only
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Common Mistakes: Distributivity on a set of three elements
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WAEC Prep: The inverse of the identity element itself
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WAEC Prep: Applying two index laws inside one expression
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Common Mistakes: Why the index laws need the bases to match
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Final Revision: Evaluating a numerical expression using the index laws
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WAEC Prep: Evaluating 8 to the power two-thirds
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WAEC Prep: Why the logarithm of a negative number does not exist
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Show All Working: The common logarithm, to base ten
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Common Mistakes: Reading a logarithm from a table
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Show All Working: Solving a simple logarithmic equation
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Common Mistakes: Rejecting a root that makes a logarithm undefined
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Final Revision: Proving a logarithmic identity from the laws
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Show All Working: Comparing logarithms given in different bases
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Common Mistakes: A logarithmic equation that becomes a quadratic
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