1,045 prompts matching "The inverse of a 2 by 2 matrix with a fractional determinant"
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Worked Example: Halving the coefficient of x and squaring it
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Practice: Working through a quadratic by completing the square, step by step
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Explain Back: Leaving the roots of a quadratic in surd form
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Worked Example: The product of the roots as c over a
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Quiz: Finding the sum and the product without solving the equation
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Common Mistakes: Roots that are reciprocals of one another
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Practice: The value of alpha to the fourth plus beta to the fourth
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Explain Back: The value of alpha minus beta, all squared
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Practice: Finding the matching value of the second unknown
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Worked Example: The degree of a polynomial in one variable
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Common Mistakes: The degree of the quotient and of the remainder
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Worked Example: The remainder on dividing by x minus 3
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Practice: The remainder on dividing by 2x minus 1
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Practice: Factorising a quartic as the product of two quadratics
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Practice: The conjunction of two propositions
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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
I have just studied the truth table for a statement with two connectives in my SS2 Further
Practice: The converse of a conditional
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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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