Posted 10 May 2016 - 06:08 PM
Posted 10 May 2016 - 06:40 PM
In wich angle mode is your calculator?, you should put it in degrees, if in the top of your screen, there is a R or a G instead of a D, this is the problem.
Posted 10 May 2016 - 09:58 PM
That answer is correct for tan(30 degrees) which means your calculator is currently in degrees mode.
tan(30 degrees) = 0.5773502 = √3/3
If you want to change the mode to radians, press , [MODE],
If you want to change the mode to gradians, press , [MODE],
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