1,332 prompts matching "Finding the centre and radius from a circle's equation"
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Learn: The Pythagorean identity, sin squared plus cos squared equals one
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Spot My Mistake: The double angle formula for sine
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WAEC Prep: The three forms of the double angle formula for cosine
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Common Mistakes: Expressing a cos x plus b sin x in the form R cos of x minus alpha
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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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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Spot My Mistake: The effect of c in y equals sin x plus c
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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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Spot My Mistake: The foci of an ellipse
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Show All Working: The rectangular hyperbola xy equals c squared
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Final Revision: The focus-directrix definition shared by all the conics
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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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Spot My Mistake: The point at which a loaded beam will tip about its support
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Learn: The velocity of one body relative to another
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
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WAEC Prep: The closest approach of two moving ships
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Show All Working: The time at which two bodies are nearest one another
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