Education Technology

Solution 14291: Performing Cosecant, Cotangent and Cosine Functions on the TI-89 Family, TI-92 Plus and Voyage™ 200.

How do I perform cosecant, cotangent and cosine functions on the TI-89 family, TI-92 Plus and Voyage 200?

The cosecant, cotangent and cosine functions can be found in the CATALOG menu of the TI-89 family, TI-92 Plus and Voyage 200. The syntax for these functions are:

cosecant= csc(expression)
cotangent= cot(expression)
cosine= cos(expression)

Please refer to the examples provided below:

Example 1: Inputting cos(60)will return the result of 0.5.

Example 2: Inputting cot(60)will return the result of 0.577335.

Example 3: Inputting csc(60) will return the result of 1.1547.

Please Note: The results provided above are based on the calculator being in DEGREE Angle mode and APPROXIMATE Exact/Approx mode.

Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information.