Trigonometric identities are powerful tools for simplifying complex equations in math and science. Three core ...

Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions. With static graphs and equations, it's ...

Working with the graphs of trigonometric functions; Calculating the area of a triangle using trigonometry; Using the sine and cosine rules to find a side or angle in a triangle; ...