# Browse Classroom Capsules and Notes

You can filter the list below by selecting a subject category from the drop-down list below, for example by selecting 'One-Variable Calculus'. Then click the 'APPLY' button directly, or select a subcategory to further refine your results.

Displaying 1081 - 1090 of 1213

A simple and clever way to compute the entry in the pascal triangle using numbers in any row above the row to which the desired entry belongs.

The authors discuss the evaluation of certain improper integrals by first transforming them.

The Golden Mean is found in electric circuit theory.

The author provides a short proof of Cramer’s rule that avoids using the adjoint of a matrix.

The number of distinct bridge auctions is calculated.
A weighted arithmetic/geometric mean inequality is proved.

Elementary examples from college algebra illustrate the idea of involutions.

Elementary examples, specifically Pythagorean triangles, illustrate the idea of involutions.
A new way to derive infinite series expressions for $$\ln 2$$ and $$\ln 3$$

The author illustrates how certain determinants can be used to motivate students. The determinants in question have terms in artithmetic progressions.