1,323 prompts matching "The solution when the quadratic expression is less than nought"
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Common Mistakes: Sketching two trigonometric curves on the same axes to find where they meet
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Learn: The distance between two points
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Spot My Mistake: The general form ax plus by plus c equals nought
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Common Mistakes: The angle between two lines found from their gradients
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Final Revision: The perpendicular distance from a point to a line
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Spot My Mistake: The equation of the tangent to a circle at a point on it
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Common Mistakes: The condition for a line to be a tangent to a circle
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Spot My Mistake: The foci of an ellipse
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Learn: The range, and why it is a weak measure of spread
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Spot My Mistake: The standard deviation of an ungrouped set of data
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Common Mistakes: The coefficient of variation, for comparing two sets
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Spot My Mistake: The point at which a loaded beam will tip about its support
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WAEC Prep: A couple, and why its moment is the same about every point
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Common Mistakes: The centre of gravity of a uniform lamina
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Quiz: Relative velocity when the two motions are at right angles
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Common Mistakes: The relative displacement of two bodies after a given time
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Spot My Mistake: Two particles on a pulley at the top of an inclined plane
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Final Revision: The distance connected particles travel before one reaches the floor
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Spot My Mistake: The least force needed to move a body up a rough incline
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Common Mistakes: The work done against friction on an incline
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