755 prompts matching "The foci of an ellipse"
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Finding the first term or common difference from the sum formula
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Sum of a geometric series with a negative common ratio
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Word problem: total distance from a bouncing ball
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Comparing arithmetic and geometric growth over time
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Reviewing every sequence and series formula before a test
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Multi-part progression problem with an unknown first term
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Sum of a series expressed with algebraic terms
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Midpoint of a line segment
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Gradient of a line joining two points
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Equation of a line through two given points
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Length of a line segment on a graph
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Vertical and horizontal line equations
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Coordinate geometry combined with simultaneous equations
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Locus problem: points equidistant from two fixed points
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Expanding and simplifying with negative brackets
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Solving simultaneous linear equations by substitution
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Solving simultaneous linear equations by elimination
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Substituting values into an algebraic expression
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Solving a word problem using simultaneous equations
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Factorising a quadratic with a coefficient in front of x squared
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