Question about Texas Instruments TI-89 Calculator

# When i take the derivative or anti derivative of sinx the answer comes out to be pi*cosx/180...i dont know why it's doing that. how do i fix it???

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You're in degrees mode. Press MODE, use down-arrow to get to Angle, press right-arrow and 1 to select RADIAN, then press ENTER to save the change.

Posted on Sep 12, 2010

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Zulfikar Ali
ali_zulfikar@yahoo.com
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