Not getting the right answers for sine, cosine and tangent with TI-89

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Discussion Overview

The discussion revolves around issues with obtaining correct values for sine, cosine, and tangent functions on a TI-89 calculator. It includes troubleshooting steps and user guidance related to calculator settings.

Discussion Character

  • Technical explanation, Homework-related

Main Points Raised

  • One participant expresses confusion about incorrect outputs for trigonometric functions on their TI-89 calculator.
  • Another participant suggests checking whether the calculator is set to radians or degrees, implying this could affect the results.
  • A further reply provides instructions on how to check and change the calculator's mode between radians and degrees.

Areas of Agreement / Disagreement

Participants have not reached a consensus, as the original poster has not confirmed whether the suggested solution resolves their issue.

Contextual Notes

Limitations: The discussion does not address other potential causes for incorrect outputs, such as input errors or misunderstanding of trigonometric principles.

frfrfrenchy
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I'm not getting the right answers for sine, cosine and tangent functions. I have no idea why this is.
 
Computer science news on Phys.org
did you check whether you're in radians or degrees?
 
How do I do that? I just got this calculator.
 
click on F2 (window)

look for radians | degrees

and highlight the one you want and click enter
 

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