1,329 prompts matching "Distance from a point to the centre of a circle"
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Quiz: The equation of the tangent to a parabola
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Learn: The moment of a force about a point, and its units
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Worked Example: The acceleration of a body moving round a circle at constant speed
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Spot My Mistake: A body on the end of a string moving in a horizontal circle
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Show All Working: A body in a vertical circle, and the tension at the top
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Common Mistakes: The condition for a body to complete a vertical circle
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Spot my mistake: Assuming the normal curve meets the horizontal axis at its points of inflexion
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Spot my mistake: Leaving out the constant of integration when velocity is found from acceleration
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Structured question: find the equation of a tangent to a curve
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WAEC Prep: The transpose of a column vector
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WAEC Prep: Writing the transpose of a matrix by turning rows into columns
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WAEC Prep: The cofactor of a corner entry
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WAEC Prep: Why the cofactor signs alternate
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Explain Back: Writing out the full matrix of cofactors
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Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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WAEC Prep: The order in which the cofactors are transposed
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WAEC Prep: The adjoint as the transpose of the matrix of cofactors
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: The resultant of two forces acting at the same point
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