1,018 prompts matching "A pair with equal roots, meaning one solution only"
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Explain Back: Arrangements in which two particular objects must stay together
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WAEC Prep: Circular permutations of n objects round a table
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Worked Example: The difference between a permutation and a combination
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WAEC Prep: Pascal's triangle and the combination numbers in it
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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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Explain Back: Solving a quadratic in sin x
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WAEC Prep: Solving an equation by first applying a double angle formula
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Worked Example: The shape, period and range of the cosine curve
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Worked Example: The midpoint formula applied to a given segment
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Explain Back: The equation of the line through two given points
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WAEC Prep: Proving two given lines parallel from their gradients
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Explain Back: Deciding whether a point lies inside, on or outside a circle
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WAEC Prep: The length of the tangent from an external point
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Worked Example: The parametric form of a point on a parabola
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Explain Back: The eccentricity of an ellipse
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WAEC Prep: The hyperbola in standard form, and its asymptotes
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Worked Example: The interquartile range of a set of ordered data
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Explain Back: The variance of an ungrouped set of data
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WAEC Prep: The standard deviation of grouped data using an assumed mean
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