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Triangular numbers

Author:Cheung Pak Hin, sonom

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Discriminant of y = ax² + bx + c
Graphs of Rational Expressions
Steel Chair
Riemann Sums
Tangent Vector (2)

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mazin geometry
Properties of Circles
Rotation Simulation
PacMaze2will
Bulldog Project

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General Quadrilateral
Conditional Probability
Histogram
Probability
Rectangle

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