1,045 prompts matching "Quiz: Rationalising a denominator of the form one over 2 plus root 3"
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Worked example: find the unit vector in the direction of (6,8)
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Worked example: how many distinct arrangements are there of the letters in the word MISSISSIPPI
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Express in the form command word: completing the square
Set me a Cambridge Additional Maths question phrased 'Express x^2 + bx + c in the form (x+
Learn: Factorising a quadratic whose coefficient of x squared is one
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Worked Example: Halving the coefficient of x and squaring it
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Quiz: Completing the square on x squared plus 6x
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Explain Back: An answer left in surd form after completing the square
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Worked Example: Substituting a, b and c into the quadratic formula correctly
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Spot My Mistake: What the formula gives when the discriminant is nought
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Show All Working: Choosing between factorising and the formula
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Common Mistakes: A sign error in the formula, and how to catch it
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Quiz: Finding the sum and the product without solving the equation
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Final Revision: One root twice the other, and what that gives
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Explain Back: The value of alpha minus beta, all squared
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WAEC Prep: Forming an equation whose roots are alpha plus one and beta plus one
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Common Mistakes: A symmetric function needing the sum and product twice over
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Quiz: Solving the quadratic that results from the substitution
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Spot My Mistake: Finding the values of c for which a line is a tangent
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Quiz: The leading term and the constant term
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Common Mistakes: Multiplying one polynomial by another
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