## Derivative of Inverse Functions — Theory and Applications

An in-depth view into how the formula for the derivative of inverse is derived, and how to use it to find the derivative of a wide range of functions.

## Derivative of $x^x$, $x^{x^x}$, and a Venture Into Tetration and Hyper-Exponentiation

An exploration into the derivative of x^x and x^x^x, and the concept of tetration and other hyper-exponentiations.

## Investment Algebra: How to Determine the Original Investment Amount from the Current Interest

How to determine the original investment amount solely from the interest amount — using algebra.

## Biostatistics For Health Professionals — A Review

An brief look into descriptive statistics, basic probability theory, inferential statistics plus a review sheet to sum up everything.

## Upcoming McGill MATH 323 Probability Q&A Session

A session on probability, with some proposed question sources and potential questions to spice things up.

## Troubleshooting: Evaluating a Trigonometric Integral Algebraically

How a trigonometric integral is evaluated incorrectly — and how to fix it.

## Modular Arithmetic: Some Advanced Tricks in Finding the Least Positive Residue

How to evaluate the least positive residue using brute force, Fermat’s Little Theorem and Chinese Remainder Theorem.

## How to Solve a System of Linear Equations with an Additional Parameter?

How to solve a system of linear equations, when a coefficient of a variable is itself a variable.