Question about Texas Instruments TI-30XA Calculator
Make sure you are set to degrees, radians, or grads, whichever angular measurement you are using.
The DRG key toggles through the three modes of input, and the display shows which you are in.
30 SIN will give the correct 0.5 answer if you are set to use DEG.
Set to RAD and since 30 degrees = (30)(pi)/180= 0.52234 rad, set to RAD and 0.52234 SIN also gives you the correct 0.5 result
Posted on Jan 01, 2009
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