1,326 prompts matching "What the formula gives when the discriminant is nought"
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Explain Back: Rationalising a denominator of the form a plus root b using the conjugate
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Learn: The multiplication and division laws of indices used together
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WAEC Prep: The change of base formula for logarithms
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Show All Working: Finding a coefficient given a stated relation between the roots
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Quiz: The factor theorem, and testing whether x minus a is a factor
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Explain Back: Finding an unknown coefficient given that a stated factor divides the polynomial
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Spot My Mistake: The factor theorem for a divisor of the form ax minus b
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Final Revision: The zeros of a polynomial and where its graph cuts the x-axis
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Practice: Finding the third root of a cubic when two are known
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Final Revision: Checking that the roots found satisfy the original equation
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Final Revision: The region of the plane satisfying a set of linear inequalities
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Practice: Arrangements when some of the objects are identical
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Show All Working: Arrangements of the letters of a given word
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Quiz: The compound angle formula for sine of A plus B
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Practice: The compound angle formula for cosine of A minus B
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Explain Back: The compound angle formula for tan of A plus B
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WAEC Prep: The three forms of the double angle formula for cosine
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Show All Working: The half angle formulae and the t-substitution
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Quiz: Solving tan x equals a given value, and the period of the tangent
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Learn: The distance between two points
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