1,045 prompts matching "Expressing a rationalised answer in the form a root b over c"
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Common Mistakes: Using the factor theorem before dividing
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Final Revision: A factor theorem question set in the WAEC style
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Practice: Factorising a quartic as the product of two quadratics
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Explain Back: The disjunction of two propositions
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Explain Back: The truth table for a statement with two connectives
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Common Mistakes: Comparing two statements by their truth tables
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Final Revision: The exclusive sense of or, and its truth table
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Explain Back: The inverse of a conditional
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Common Mistakes: Writing the converse, inverse and contrapositive of one statement
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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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Explain Back: The rule of syllogism
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Common Mistakes: The fallacy of denying the antecedent
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Explain Back: Arrangements restricted at the first letter
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Final Revision: Counting the arrangements of people in a queue
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Worked Example: Selections in which the order does not matter
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Common Mistakes: The number of ways of dividing a class into groups
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Worked Example: Counting the total outcomes with combinations
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Practice: The probability of drawing one ball of each colour
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Worked Example: Reading the coefficients of an expansion off Pascal's triangle
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