1,043 prompts matching "Proving the sum formula for a geometric progression"
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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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Spot My Mistake: The negation of a proposition
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Quiz: Disjunction and the inclusive or
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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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Spot My Mistake: The contrapositive of a conditional
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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: The law of the excluded middle
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Final Revision: A longer statement tested for tautology
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WAEC Prep: Testing an argument for validity by truth table
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Final Revision: An argument written in words and tested for validity
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Worked Example: The number of ways n people sit round a round table
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Practice: Circular arrangements with two people together
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Worked Example: Selections in which the order does not matter
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Quiz: Selecting from two groups at the same time
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Worked Example: Counting the total outcomes with combinations
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Quiz: The probability of drawing two red balls
Act as my SS2 Further Mathematics tutor and quiz me on the probability of drawing two red