Tutorial: Finding Angles Given Trigonometric Ratios
Take a moment before starting the tutorial on inverse trigonometric values to find the sine, cosine, and tangent keys on your calculator. You should also find the inverse trigonometric functions labeled as sin-1, cos-1, and tan-1. If you have a graphing calculator the following website will be helpful:
Select the play button to begin the tutorial, and then use the navigation buttons to pause/stop, continue, or reset the tutorial. View the presentation as often as you would like, and take notes as you follow along. Be sure to set your volume at a reasonable level before you begin.