662 prompts matching "A set closed under one operation but not another"
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Learn: Factorising a cubic into three linear factors
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Worked Example: Factorising a cubic into a linear and a quadratic factor
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Explain Back: A polynomial with a repeated linear factor
I have just studied a polynomial with a repeated linear factor in my SS2 Further Mathemati
Learn: Solving a cubic once it has been factorised
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Worked Example: How many roots a cubic equation has
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Explain Back: A cubic with a repeated root
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Learn: What makes a sentence a proposition
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Explain Back: The disjunction of two propositions
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Learn: How many rows a truth table needs
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Worked Example: Conjunction in a three-variable truth table
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Explain Back: The truth table for a statement with two connectives
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Learn: The conditional statement, if p then q
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Worked Example: The truth table for the conditional
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Explain Back: The inverse of a conditional
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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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Explain Back: Showing two statements equivalent by truth table
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Learn: What a tautology is
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Worked Example: What a contradiction is
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Explain Back: Showing that a statement is a contradiction
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