In this video I will show you how to solve a trigonometric equation using the double angle for cosine. When applying the double angle of cosine we are given a quadratic equation where we will now need ...

In this video I show you how to simplify trigonometric identities by adding fractions. I begin this lesson by reminding you ...

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 ...

Practise solving trigonometric equations in degrees or radians using CAST and its period to find other solutions within the range, including multiple or compound angles and the wave function.

Jacob Braach took second place nationally, joining the ranks of only a handful of Montanans who have won country-wide accolades in the decades during which the Trig Star contest has operated in the ...