1,334 prompts matching "The sum to infinity of a geometric progression, and when it exists"
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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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Practice: The ellipse in standard form, and its two axes
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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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Common Mistakes: The coefficient of variation, for comparing two sets
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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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WAEC Prep: The closest approach of two moving ships
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Common Mistakes: The relative displacement of two bodies after a given time
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Worked Example: The common acceleration of two connected particles
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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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Spot My Mistake: The least force needed to move a body up a rough incline
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WAEC Prep: Limiting equilibrium, with a body on the point of sliding
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Learn: Angular velocity, and how it relates to linear speed
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Worked Example: The acceleration of a body moving round a circle at constant speed
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Quiz: The centripetal force, and what supplies it in a given situation
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