1,045 prompts matching "Explaining why a^1/n means the nth root of a"
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Worked Example: Factorising a cubic into a linear and a quadratic factor
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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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Show All Working: Solving a cubic that must first be rearranged
Act as my Further Mathematics examiner. I am in SS 2. Set me a question on solving a cubic
Common Mistakes: A cubic equation arising from a volume problem
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Worked Example: Sentences that are not propositions
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Show All Working: Translating an English sentence into logical symbols
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Common Mistakes: Translating a symbolic statement back into English
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Final Revision: A compound proposition built from three simple ones
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Worked Example: Conjunction in a three-variable truth table
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Final Revision: A conditional statement set in an everyday situation
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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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Final Revision: A longer statement tested for tautology
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Worked Example: Premises and conclusion
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Final Revision: An argument written in words and tested for validity
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Common Mistakes: Arranging objects when some must stay in a fixed order
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Common Mistakes: Comparing a line arrangement with a circular one
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Final Revision: A word problem about seating at a round table
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Final Revision: A word problem about choosing a delegation
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