1,045 prompts matching "Counting the handshakes, or the lines joining n points"
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Common Mistakes: Factorising fully, and knowing when to stop
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Final Revision: Checking a factorisation by expanding it again
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Learn: Solving a cubic once it has been factorised
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Spot My Mistake: Finding the remaining roots once one is known
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Quiz: The truth value of a simple proposition
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Practice: The conjunction of two propositions
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Explain Back: The disjunction of two propositions
I have just studied the disjunction of two propositions in my SS2 Further Mathematics clas
Spot My Mistake: The negation of a proposition
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Common Mistakes: Comparing two statements by their truth tables
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Learn: The conditional statement, if p then q
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Practice: The converse of a conditional
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Explain Back: The inverse of a conditional
I have just studied the inverse of a conditional in my SS2 Further Mathematics class. Let
Spot My Mistake: The contrapositive of a 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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Quiz: The biconditional as two conditionals taken together
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Spot My Mistake: De Morgan's laws in logic
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Common Mistakes: Simplifying a compound statement using the laws
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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