1,326 prompts matching "Rationalising the denominator when it's a surd minus a surd"
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Show All Working: Finding a coefficient given a stated relation between the roots
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Worked Example: The sum of the products of the roots of a cubic taken two at a time
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Worked Example: The number of arrangements of n different objects in a row
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Show All Working: Arrangements of the letters of a given word
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Worked Example: The difference between a permutation and a combination
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Show All Working: Counting the handshakes, or the lines joining n points
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Practice: Solving an equation of the form sin of 2x equals a given value
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Show All Working: Solving a cos x plus b sin x equals c by the R method
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Worked Example: The shape, period and range of the cosine curve
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Practice: The effect of a in y equals a sin x
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Show All Working: Reading the solutions of a trigonometric equation off a graph
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Worked Example: The midpoint formula applied to a given segment
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Show All Working: Proving two given lines perpendicular from their gradients
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Practice: The equation of a circle on a given diameter
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Show All Working: The intersection of a circle and a straight line
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Worked Example: The parametric form of a point on a parabola
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Show All Working: The rectangular hyperbola xy equals c squared
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Worked Example: The interquartile range of a set of ordered data
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Practice: The mean deviation from the 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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