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

Thread starter frfrfrenchy
Start date Sep 27, 2007
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Cosine Sine Tangent Ti-89

AI Thread Summary

Issues with obtaining correct answers for sine, cosine, and tangent functions often stem from whether the calculator is set to radians or degrees. To check the setting on a calculator, access the F2 menu and look for the options labeled "radians" and "degrees." Highlight the desired option and press enter to select it. Ensuring the correct mode is crucial for accurate trigonometric calculations.

Sep 27, 2007

frfrfrenchy

I'm not getting the right answers for sine, cosine and tangent functions. I have no idea why this is.

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Sep 27, 2007

rocomath

did you check whether you're in radians or degrees?

Sep 27, 2007

frfrfrenchy

How do I do that? I just got this calculator.

Sep 27, 2007

rocomath

click on F2 (window)

look for radians | degrees

and highlight the one you want and click enter

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