In this book, trigonometry is presented mainly through the solution of specific problems. The problems are meant to help the reader consolidate their knowledge of the subject. In addition, they serve ...

Trigonometric identities are powerful tools for simplifying complex equations in math and science. Three core groups—reciprocal, quotient, and Pythagorean—form the foundation. Effective strategies ...

Simplify your hiring and employee promotions by creating a salary scale spreadsheet. Rather than negotiating salary rates and increases based on individual circumstances, standardize the process with ...

Abstract: Following results of Bernasconi, Codenotti, and Van-derKam on a characterization of bent functions, feasible parameters and corresponding eigenvalues of the associated Cayley graphs of bent ...

While graphs for cosine and sine functions are similar, those for tangent functions differ significantly from them, sharing only in that they show periodicity and symmetry. Recall \(\tan(x)= ...

Everybody needs a calculator. Because of this, there have been many calculators through the years, and they’re actually pretty easy to find. Most people use them to figure out stuff like how much to ...

Linear functions are fundamental building blocks in mathematics and play a key role in solving real-world problems where the rate of change remains constant. Linear functions arise in a wide range of ...

Many types of economic problems require that we consider two variables at the same time. A typical example is the relation between price of a commodity and the demand or supply of that commodity. The ...