1,045 prompts matching "Give me an exam formula sheet for sum and product of roots"
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Worked Example: Factorising a quadratic whose leading coefficient is not one
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Learn: The sum of the roots as minus b over a
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Worked Example: The product of the roots as c over a
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WAEC Prep: A pair that gives no real solution at all
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Worked Example: The degree of a polynomial in one variable
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WAEC Prep: Expressions that are not polynomials, and why not
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Worked Example: The remainder on dividing by x minus 3
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Practice: Showing that x plus 3 is a factor of a given polynomial
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Spot My Mistake: Factorising the sum of two cubes
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Practice: A cubic with one real root and two complex ones
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WAEC Prep: The relation between the roots and the constant term
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Worked Example: Sentences that are not propositions
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Worked Example: Conjunction in a three-variable truth table
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Practice: Negation combined with a compound statement
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WAEC Prep: Why a conditional and its contrapositive are equivalent
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Worked Example: What a contradiction is
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Practice: Showing that a statement is a tautology
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Worked Example: The number of ways n people sit round a round table
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WAEC Prep: Beads on a necklace, and why the count halves
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Worked Example: Selections in which the order does not matter
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