823 prompts matching "Showing a set is not closed by a single counter-example"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Final Revision: One root twice the other, and what that gives
Act as my SS2 Further Mathematics tutor at the end of the term. Give me a rapid recap of o
Spot My Mistake: The value of alpha over beta plus beta over alpha
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Final Revision: Using a symmetric function to find an unknown coefficient
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Spot My Mistake: A pair with equal roots, meaning one solution only
Act as my SS2 Further Mathematics tutor. Work a question on a pair with equal roots, meani
Final Revision: Checking both solutions in both equations
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Final Revision: A word problem about a line and a parabola
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Spot My Mistake: A polynomial written in descending powers
Act as my SS2 Further Mathematics tutor. Work a question on a polynomial written in descen
Final Revision: The degree of the product of two polynomials
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Spot My Mistake: Finding two coefficients from two remainder conditions
Act as my SS2 Further Mathematics tutor. Work a question on finding two coefficients from
Final Revision: A word problem that uses the remainder theorem
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Spot My Mistake: The factor theorem applied to a quartic
Act as my SS2 Further Mathematics tutor. Work a question on the factor theorem applied to
Spot My Mistake: The negation of a proposition
Act as my SS2 Further Mathematics tutor. Work a question on the negation of a proposition
Final Revision: A compound proposition built from three simple ones
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Final Revision: The exclusive sense of or, and its truth table
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Spot My Mistake: The contrapositive of a conditional
Act as my SS2 Further Mathematics tutor. Work a question on the contrapositive of a condit
Spot My Mistake: De Morgan's laws in logic
Act as my SS2 Further Mathematics tutor. Work a question on de Morgan's laws in logic with
Final Revision: A biconditional used in a mathematical definition
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Spot My Mistake: The law of the excluded middle
Act as my SS2 Further Mathematics tutor. Work a question on the law of the excluded middle
Final Revision: A longer statement tested for tautology
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Final Revision: An argument written in words and tested for validity
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