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Sin(30)= ? help

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All of the homework is online and on an example it says sin(30=.5 but when i do it i get -.9880316241 on two different calculators so im guessing i'm missing a step but i dont know what hopefully you can help

asked Apr 30, 2013 by anonymous

1 Answer

0 votes

The sine of 30 radians is about -0.988 while the sine of 30 degrees is 0.5 .

The problem is that you work with radians instead of degrees I guess.


To change the angular setting, press "Mode" (this is a kind of menu, down-arrow to the 3rd line, highlight "Degree", press "Enter", then "2nd" and "Quit" to exit the mode screen.

answered Apr 30, 2013 by anonymous

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