Learning with TOI News: Trigonometric identities are powerful tools for simplifying complex equations in math and science. Three core groups—reciprocal, quotient, and Pythago ...

Determining composite and inverse functions Composite and inverse functions can be determined for trigonometric, logarithmic, exponential or algebraic functions.

Learn how to solve trigonometric equations in Higher Maths involving multiple or compound angles and the wave function in degrees or radians.

A new recursive identification algorithm with output weighted cosine basis functions (WCS) is investigated for the time-varying systems. After introducing a weight factor to the output of a ...

In this paper we study a type of trigonometric extremal problem which originates in the work of Arne Beurling in the late 1930s and concerns approximations to the function sgn (x). The extremal ...

Solve the trigonometric equation derived above to find when the mean temperature will be over 14°C in Wellington. How can the answer be checked on the graph? Is it sensible to convert the solution to ...