1,325 prompts matching "Rationalising when both terms of the denominator are surds"
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Practice: The equation of a line through a point with a given gradient
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Explain Back: The equation of the line through two given points
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Worked Example: The equation of a circle with a given centre and radius
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Practice: The equation of a circle on a given diameter
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WAEC Prep: The length of the tangent from an external point
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Show All Working: The intersection of a circle and a straight line
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Final Revision: The equation of the circle through three given points
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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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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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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Show All Working: The effect on the standard deviation of adding a constant to every value
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Common Mistakes: The coefficient of variation, for comparing two sets
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Final Revision: Reading the quartiles off a cumulative frequency curve
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Explain Back: Finding the reaction at each support of a loaded beam
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Common Mistakes: The centre of gravity of a uniform lamina
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Worked Example: Relative velocity when two bodies move along the same line
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Practice: The triangle of velocities for a boat crossing a river
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