Question about Texas Instruments TI-89 Calculator

# I am trying to find the integral to x*sinx on my ti-89 but everytime I get an argument error message. Is there a different x button other than the obvious big white x button?

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• Texas Instru... Master

Hello,
Here is a screen capture of the integral.

The dummy variable x may contain some previously defined value. Clear old values . In Home folder [2nd][F6: Clean Up][ 1:Clear a-z] [ENTER][ENTER] or [2:NewProb][ENTER][ENTER]
Make sure you insert the multiplication sign. And do not forget to put the argument x of the function inside parentheses.
Hope it helps.

Posted on Sep 30, 2009

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Posted on Jan 02, 2017

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