1,045 prompts matching "The inverse of a 2 by 2 matrix as one over the determinant times the adjoint"
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Quiz: Disjunction and the inclusive or
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Explain Back: The truth table for a statement with two connectives
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Worked Example: The truth table for the conditional
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Quiz: Why a conditional with a false antecedent counts as true
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Worked Example: The truth table for the biconditional
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Common Mistakes: Simplifying a compound statement using the laws
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WAEC Prep: A tautology used to justify a rule of algebra
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Quiz: Modus ponens
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WAEC Prep: Testing an argument for validity by truth table
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Practice: Arrangements of a word with repeated letters
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Explain Back: Arrangements restricted at the first letter
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Quiz: Why one person is fixed in a circular arrangement
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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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Practice: A selection that must include one particular member
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Explain Back: A selection that must exclude one particular member
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Worked Example: Counting the total outcomes with combinations
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Spot My Mistake: The probability that a committee contains a given person
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Quiz: Finding the term in x cubed
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Spot My Mistake: The middle term when n is even
Act as my SS2 Further Mathematics tutor. Work a question on the middle term when n is even