👉 Learn how to evaluate trigonometric functions using trigonometric identities. Trigonometric identities are equalities that involve trigonometric functions. We will focus on the cofunction ...

👉 Learn how to evaluate the six trigonometric functions given the value of one of the trigonometric functions. When given the value of one of the trigonometric functions of an angle, we can evaluate ...

This is an engaging and challenging practice on finding and using the values of special angles from the unit circle to evaluate 10 trigonometric expressions. The expressions include two or three trig ...

Some exact trigonometric values are equivalent. For example, \( \frac{1}{√2}\) = \( \frac{√2}{2}\). The denominator has been rationalised. To be successful with exact trigonometric values, especially ...

Interactive macro-enabled MS-Excel spreadsheet. Contents: Find exact trigonometric values for 45° using an isosceles triangle. Find exact trigonometric values for 30° & 60° using an equilateral Δ.