Solution 34422: Calculating Inverse Sine (Arcsine), Cosine (Arccosine), and Tangent (Arctangent) on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
How do I calculate inverse sine (arcsine), cosine (arccosine), and tangent (arctangent) on the TI-83 Plus and TI-84 Plus family of graphing calculators?
To calculate inverse sine (arcsine), cosine (arccosine), and tangent (arctangent), follow the steps below.
Please Note: For these examples, the handheld's angle mode setting will need to be changed to DEGREE mode.
• Press the [MODE] key.
• Scroll down to "RADIAN", scroll right to highlight "DEGREE" and press [ENTER].
• Press [CLEAR] to return to the home screen.
Example: Calculate the inverse sine (arcsine) of .5.
Press [2nd] [SIN], input .5, then press [ ) ] [ENTER].
Example: Calculate the inverse cosine (arccosine) of .5.
Press [2nd] [COS], input .5, then press [ ) ] [ENTER].
Example: Calculate the inverse tangent (arctangent) of .5.
Press [2nd] [SIN], input .5, then press [ ) ] [ENTER].
Please see the TI-83 Plus and TI-84 Plus Family guidebooks for additional information.
Last updated: 11/12/2024