1,333 prompts matching "A binary operation defined on the integers"
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Spot My Mistake: The standard deviation 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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Worked Example: The sign convention for clockwise and anticlockwise moments
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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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Final Revision: A ladder leaning against a wall, and the moments acting on it
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Learn: The velocity of one body relative to another
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Worked Example: Relative velocity when two bodies move along the same line
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Quiz: Relative velocity when the two motions are at right angles
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Show All Working: The time at which two bodies are nearest one another
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Common Mistakes: The relative displacement of two bodies after a given time
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Final Revision: Interception, where one body must catch another
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Worked Example: The common acceleration of two connected particles
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Quiz: The tension in the string joining two connected particles
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Spot My Mistake: Two particles on a pulley at the top of an inclined plane
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Show All Working: A lift, and the person standing in it
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Common Mistakes: What becomes of the tension when the string goes slack
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