821 prompts matching "Structured question: find k so a cubic has a repeated root"
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Worked Example: The truth table for the conditional
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Common Mistakes: Writing the converse, inverse and contrapositive of one statement
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Learn: The biconditional, p if and only if q
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Worked Example: The truth table for the biconditional
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Common Mistakes: Simplifying a compound statement using the laws
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Learn: What a tautology is
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Worked Example: What a contradiction is
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Common Mistakes: Deciding between tautology, contradiction and contingency
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Learn: What makes an argument valid
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Worked Example: Premises and conclusion
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Common Mistakes: The fallacy of denying the antecedent
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Learn: Arranging five different books on a shelf
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Worked Example: Arranging r of n objects in a line
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Learn: What makes a permutation cyclic
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Worked Example: The number of ways n people sit round a round table
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Common Mistakes: Comparing a line arrangement with a circular one
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Learn: Selecting a team of five from a squad
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Worked Example: Selections in which the order does not matter
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Common Mistakes: The number of ways of dividing a class into groups
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Learn: Probability as favourable outcomes over total outcomes
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