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## Cardinality and Countably Infinite Sets

Cardinality is a term used to describe the size of sets. Set A has the same cardinality as set B if a bijection exists between the two sets. We write this as |A| = |B|. One important type of cardinality is called “countably infinite.”

read more## Cryptography: How the Internet We Love Almost Never Existed

Resources -The internet we love almost never existed.

read more## Completing the Square

A brief discussion about what completing the square is and what we use it for. Focuses on using the technique for other reasons than solving equations.

read more## Find the Vertex by Using the Quadratic Formula

The Quadratic Formula is primarily used to identify the roots (\(x\)-intercepts) of a quadratic function

read more## 10 Ways Tutoring Can Help You

Finding a good math tutor can be essential to your success in school. Tutoring can do much more

read more## Modular Arithmetic & Fermat’s Little Theorem

Modular arithmetic is a way of counting in which the numbers wrap around after reaching a certain value.

read more## Algebraic Rings

An algebraic ring is one of the most fundamental algebraic structures. It builds off of the idea of algebraic groups

read more## Algebraic Groups

One of the most fundamental algebraic structures in mathematics is the group. A group is a set of elements

read more## L’Hospital’s Rule

L’Hospital’s Rule is a useful way to evaluate tricky limits. It is most often used for limits of indeterminate form

read more## Absolute Value and Logarithms

Absolute values often turn up unexpectedly in problems involving logarithms.

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