1,045 prompts matching "The determinant of a 2 by 2 matrix as ad minus bc"
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Worked Example: Substituting a, b and c into the quadratic formula correctly
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Common Mistakes: Roots that are reciprocals of one another
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Quiz: The value of one over alpha squared plus one over beta squared
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Practice: The value of alpha to the fourth plus beta to the fourth
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Spot My Mistake: The value of alpha over beta plus beta over alpha
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Learn: Making one unknown the subject of the linear equation
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Worked Example: Substituting into the quadratic and tidying up
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Quiz: Solving the quadratic that results from the substitution
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Practice: Finding the matching value of the second unknown
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Quiz: The condition for two points of intersection
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Spot My Mistake: Finding the values of c for which a line is a tangent
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WAEC Prep: Finding the values of m for which a line cuts a curve twice
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Worked Example: The degree of a polynomial in one variable
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Quiz: The leading term and the constant term
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Practice: Polynomial notation such as P of x
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Final Revision: The degree of the product of two polynomials
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Common Mistakes: The degree of the quotient and of the remainder
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Final Revision: Writing the result of a polynomial division out in full
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Learn: The statement of the remainder theorem
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Quiz: The remainder on dividing by x plus 2
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