1,334 prompts matching "Halving the coefficient of x and squaring it"
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Quiz: The gradient of the line through two points
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WAEC Prep: The length of the tangent from an external point
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Common Mistakes: The condition for a line to be a tangent to a circle
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Final Revision: The equation of the circle through three given points
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Quiz: The equation of the tangent to a parabola
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Spot My Mistake: The foci of an ellipse
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Final Revision: The focus-directrix definition shared by all the conics
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Final Revision: Reading the quartiles off a cumulative frequency curve
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Quiz: The principle of moments for a body in equilibrium
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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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Spot My Mistake: Two particles on a pulley at the top of an inclined plane
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Common Mistakes: What becomes of the tension when the string goes slack
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Quiz: The acceleration of a body sliding down a smooth incline
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Spot My Mistake: A body on the end of a string moving in a horizontal circle
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Common Mistakes: The condition for a body to complete a vertical circle
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Learn: The defining equation of simple harmonic motion
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WAEC Prep: The simple pendulum as an example of simple harmonic motion
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Common Mistakes: The energy of a body in simple harmonic motion
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Quiz: The extension of a spring under a given load
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