# Archive

## Fall 2017

Polynomials |

Systems of Equations |

AMC 10 | AMC 12 | AIME | PUMaC | NYCIML |

## Spring 2017

Logic and Definitions I | Solutions |

Logic and Definitions II | |

The Pigeonhole Principle | Solutions |

The Extremal Principle | Solutions |

Counting Techniques |

Probability |

Expected Value and Recursion |

Markov Chains |

Graph Theory |

Asymptotic Calculus |

Optimization Problems |

## Fall 2016

Modular Arithmetic | Solutions |

Euler's Totient Function | |

Integer Linear Equations | |

Sums of Squares |

Similar Triangles |

Circles |

Trigonometry |

Cyclic Quadrilaterals |

Trigonometric Functions |

Miscellaneous Functions |

Summing Series | Solutions |

Solving Recurrences |

## Spring 2016

Solving Polynomials | Solutions |

Not Solving Polnomials | Solutions |

Complex Numbers | Solutions |

Arithmetic and Geometric Series | Solutions |

Invariants | Solutions |

Induction | Solutions |

Games | Solutions |

Strategies | Solutions |

Foundations | Solutions |

Random Variables | Solutions |

## Fall 2015

Modular Arithmetic | Solutions |

Divisibility | Solutions |

Fermat's Little Theorem | Solutions |

Diophantine Equations | Solutions |

The Area Method | Solutions |

Circles | |

Triangles | |

Coordinate Geometry | Solutions |

Permuations and Binomials | Solutions |

Counting Strategies | Solutions |

Recursions | Solutions |