Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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Tan Cos and Sin errors

Hello, i recently bought my TI-84 Plus graphing calc. and i went to do some angle math, when i kept getting wrong answers; because the Tan Sin and Cos are all wrong!
For Example: I i enter Tan( 3 and i get the answer -.1425465431
Cos is -.9899924966
Sin is .1411200081
Is this as simple as hitting reset? Or what should i do to help fix my calculator before school.
Thanks for Everything,
KC

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  • Spartan KC17 Aug 20, 2008

    Fixed it lol, i just changed the default Radian option in Mode to Degree. Thanks anyway.

  • Anonymous Jan 13, 2009

    thank you! !!

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Go to:


mode
select DEGREE rather than RADIAN three lines down.

Posted on Jan 21, 2009

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