Practice Trigonometric Functions in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
Trigonometric functions (sin, cos, tan, etc.) relate angles in right triangles to side ratios and extend to periodic functions of real numbers via the unit circle.
Angles have numbers associated with them—sin, cos, tan capture different ratios.
Example 1
easyEvaluate \sin\left(\frac{\pi}{6}\right) and \cos\left(\frac{\pi}{6}\right).
Example 2
mediumFind the exact value of \tan\left(\frac{5\pi}{4}\right).
Example 3
easyEvaluate \cos\left(\frac{\pi}{3}\right).
Example 4
hardIf \sin\theta = \frac{3}{5} and \theta is in Quadrant II, find \cos\theta and \tan\theta.