# Archive

Many solutions can be found at the following sites:
 AMC 10 AMC 12 AHSME AIME CMIMC PUMaC NYCIML

## Spring 2019

 Angle Chsing and Similarity Congruence Circles Review Proportionality and Angle Chasing Constructions Additions to Figures

## Fall 2018

 Polynomials Sequences and Series Review 1 Trig/Logs Review 2
 Counting Techniques Probability Pigeonhole Principle Review 1 Invariants Review 2

## Spring 2018

 Probability without Counting Expected Value and Conditional Probability
 104 Problems Part 1 104 Problems Part 2 104 Problems Part 3 Number Theory 4
 Algebraic Manipulations
 Things that Look True Techniques Induction Special Topic

## Fall 2017

 Polynomials Systems of Equations Complex Numbers Sequences and Series
 Angle Chasing Length Chasing Area Chasing
 Lattice Paths Inclusion/Exclusion Set Theory Pigeonhole Intro Pigeonhole Exercises Coloring

## 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

## 2014-15

 Polnomial Bases Solving Recurrences Generating Functions I Generating Functions II
 Markov Chains The Twelvefold Way Chess
 Coordinate Geometry 3D Geometry
 Divisors and Factors Lessons from AMC

## Spring 2014

 Finite Sums Solving Recurrences Vieta's Formulas
 Writing Proofs I Writing Proofs II
 Generating Functions I Generating Functions II

## Fall 2013

 Modular Arithmetic Divisors Everything Else
 Inclusion-Exclusion and Binomials Induction, Pigeonhole, Brute Force Graph Theory Optimization
 Incidence Geometry Circles Triangles