1,319 prompts matching "Learn: What the modulus of a number means"
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Worked Example: Evaluating a polynomial by substitution
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Practice: Factorising a cubic completely once one factor is known
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WAEC Prep: Sketching a cubic from its factorised form
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Quiz: Solving a quadratic inequality using a sign table
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WAEC Prep: Writing a solution set in interval notation
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Spot My Mistake: Arrangements in which two particular objects must be kept apart
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Practice: Choosing a committee that must contain one particular person
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Worked Example: Solving cos x equals a negative value, and finding both solutions
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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WAEC Prep: Solving an equation by first applying a double angle formula
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Practice: A uniform beam resting on two supports
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
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Practice: A particle on a smooth table connected to a hanging particle
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Practice: A car rounding a bend on a level road
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Spot My Mistake: A particle hanging in equilibrium on an elastic string
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WAEC Prep: Two elastic strings supporting one particle
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Spot my mistake: Assuming multiplying a vector by a negative scalar leaves its magnitude negative
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Assuming a quadratic with a negative discriminant has no roots at all
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